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Using variables form other classes in java

I am trying to use two int variables from other classes in another class and then add them together into another variable and print the result. When I try this though, I always get a result of zero like the values are not being brought over into the new class and I can't figure out what the problem is.
Here is some example code:
class1
public static int finished = (match2.totalpoints + match3.iq);
public static void main(String[] args) throws InterruptedException {
// TODO Auto-generated method stub
Scanner s = new Scanner(System.in);
System.out.println("THIS IS YOUR OWN EXCLUSIVE IQ TEST OR MEMORY QUIZ OR WHATEVER....");
System.out.println("");
System.out.println("When taking the quiztest you have only two seconds before making each guess");
match2 m = new match2();
System.out.println("THAT MEANS ACCORDING TO YOUR QUIZTEST YOU'VE GOT AN IQ OF " + finished + " POINTS");
}
}
EDIT: class2
public class match2 {
public static int totalpoints;
int a;
int b;
int c;
int d;
int e;
int f;
String guess;
String group;
String countdown[] = {
"3...",
"2...",
"1...",
""
};
String memorize[] = {
""
};
public match2() throws InterruptedException
{
int x = set2();
int y = set3();
int z = set4();
total(x, y, z);
System.out.println("For the next part of your IQ ASSesment\njust type back the words in CAPSLOCK in CAPSLOCK");
System.out.println("");
match3 n = new match3();
}
public void set1() throws InterruptedException
{
//Scanner s = new Scanner(System.in);
for (int i = 0; i < countdown.length; i++)
{
Thread.sleep(750);
System.out.println(countdown[i]);
}
}
public int set2() throws InterruptedException
{
Random r = new Random();
Scanner s = new Scanner(System.in);
System.out.println("press ENTER for your first set...");
s.nextLine();
set1();
int rv = 0;
a = r.nextInt(9) + 1;
b = r.nextInt(9) + 1;
c = r.nextInt(9) + 1;
d = r.nextInt(9) + 1;
group = "" + a + b + c + d;
System.out.println(group);
for (int i = 0; i < memorize.length; i++)
{
Thread.sleep(1500);
System.out.println(memorize[i]);
}
System.out.println("\n\n\n\n\n\n\n\n\n\n");
guess = "" + s.nextLine();
if(guess.equals(group))
{
System.out.println("nice +1 bruh");
rv = 1;
}
else if(!guess.equals(group))
{
System.out.println("almost");
}
return rv;
}
public int set3() throws InterruptedException
{
Random r = new Random();
Scanner s = new Scanner(System.in);
System.out.println("");
System.out.println("press ENTER for your next set...");
s.nextLine();
set1();
int rv = 0;
a = r.nextInt(9) + 1;
b = r.nextInt(9) + 1;
c = r.nextInt(9) + 1;
d = r.nextInt(9) + 1;
f = r.nextInt(9) + 1;
group = "" + a + b + c + d + f;
System.out.println(group);
for (int i = 0; i < memorize.length; i++)
{
Thread.sleep(1500);
System.out.println(memorize[i]);
}
System.out.println("\n\n\n\n\n\n\n\n\n\n");
guess = s.nextLine();
if(group.equals(guess))
{
rv = 1;
System.out.println("good");
}
else if(!guess.equals(group))
{
System.out.println("almost");
}
return rv;
}
public int set4() throws InterruptedException
{
Random r = new Random();
Scanner s = new Scanner(System.in);
System.out.println("");
System.out.println("press ENTER for your final set...");
s.nextLine();
set1();
int rv = 0;
a = r.nextInt(9) + 1;
b = r.nextInt(9) + 1;
c = r.nextInt(9) + 1;
d = r.nextInt(9) + 1;
e = r.nextInt(9) + 1;
f = r.nextInt(9) + 1;
group = "" + a + b + c + d + f + e;
System.out.println(group);
System.out.println("");
for (int i = 0; i < memorize.length; i++)
{
Thread.sleep(1500);
System.out.println(memorize[i]);
}
System.out.println("\n\n\n\n\n\n\n\n\n\n");
guess = "" + s.nextLine();
if(group.equals(guess))
{
rv = 1;
System.out.println("great");
}
else if(!group.equals(guess))
{
System.out.println("eeeh buzer sound");
}
return rv;
}
public int total(int x, int y, int z)
{
System.out.println("");
int totalpoints = (x + y + z);
if(totalpoints == 3)
{
System.out.println("YOU GOT THEM ALL");
}
if(totalpoints <= 2 && totalpoints >= 1)
{
System.out.println("YOU MISSED A TOTAL OF " + (3 - totalpoints));
}
if(totalpoints == 0)
{
System.out.println("HA! YOU MISSED THEM ALL");
}
return totalpoints;
}
}
EDIT: class3
public class match3 {
public static int iq;
String countupdown [] = {
"READY...",
"SET.....",
""
};
String memorize [] = {
""
};
public match3() throws InterruptedException
{
int mem1 = memory1();
int mem2 = memory2();
int mem3 = memory3();
totalMemory(mem1, mem2, mem3);
}
public void methodCountdown() throws InterruptedException
{
for(int i = 0; i < countupdown.length; i++)
{
Thread.sleep(1000);
System.out.println(countupdown[i]);
}
}
public int memory1() throws InterruptedException
{
int rv = 1;
Scanner s = new Scanner(System.in);
System.out.println("Press ENTER when ready");
s.nextLine();
methodCountdown();
String a = word1();
String b = word2();
System.out.println("The " + a + " ate the " + b);
String wordgroup = "" + a + " " + b;
for (int i = 0; i < memorize.length; i++)
{
Thread.sleep(1500);
System.out.println(memorize[i]);
}
System.out.println("\n\n\n\n\n\n\n\n\n\n");
String wordguess = "" + s.nextLine();
if(wordgroup.equals(wordguess))
{
System.out.println("awesome cock muncher a match");
rv = 1;
}
else if(!wordgroup.equals(wordguess))
{
System.out.println("nope");
}
return rv;
}
public int memory2() throws InterruptedException
{
int rv = 0;
Scanner s = new Scanner(System.in);
System.out.println("");
System.out.println("Press ENTER for your next set");
s.nextLine();
methodCountdown();
String a = word1();
String c = word3();
System.out.println("The " + a + " drove the " + c);
String wordgroup = "" + a + " " + c;
for (int i = 0; i < memorize.length; i++)
{
Thread.sleep(1500);
System.out.println(memorize[i]);
}
System.out.println("\n\n\n\n\n\n\n\n\n\n");
String wordguess = "" + s.nextLine();
if(wordgroup.equals(wordguess))
{
System.out.println("awesome cock muncher a match");
rv = 1;
}
else if(!wordgroup.equals(wordguess))
{
System.out.println("nope");
}
return rv;
}
public int memory3() throws InterruptedException
{
int rv = 0;
Scanner s = new Scanner(System.in);
System.out.println("");
System.out.println("Press ENTER for your next set");
s.nextLine();
methodCountdown();
String a = word1();
String d = word4();
System.out.println("The " + a + " visited the " + d);
String wordgroup = "" + a + " " + d;
for (int i = 0; i < memorize.length; i++)
{
Thread.sleep(1500);
System.out.println(memorize[i]);
}
System.out.println("\n\n\n\n\n\n\n\n\n\n");
String wordguess = "" + s.nextLine();
if(wordgroup.equals(wordguess))
{
System.out.println("awesome cock muncher a match");
rv = 1;
}
else if(!wordgroup.equals(wordguess))
{
System.out.println("nope");
}
return rv;
}
public static String word1()
{
String word = "";
Random r = new Random();
int cv = r.nextInt(3) + 1;
if(cv == 1)
{
word = "DOG";
}
else if(cv == 2)
{
word = "CAT";
}
else if(cv == 3)
{
word = "BIRD";
}
return word;
}
public static String word2()
{
String word = "";
Random r = new Random();
int cv = r.nextInt(3) + 1;
if(cv == 1)
{
word = "FOOD";
}
else if(cv == 2)
{
word = "MUD";
}
else if(cv == 3)
{
word = "GRAINS";
}
return word;
}
public static String word3()
{
String word = "";
Random r = new Random();
int cv = r.nextInt(3) + 1;
if(cv == 1)
{
word = "TRAM";
}
else if(cv == 2)
{
word = "BUS";
}
else if(cv == 3)
{
word = "BICYCLE";
}
return word;
}
public static String word4()
{
String word = "";
Random r = new Random();
int cv = r.nextInt(3) + 1;
if(cv == 1)
{
word = "MALL";
}
else if(cv == 2)
{
word = "PARK";
}
else if(cv == 3)
{
word = "POOL";
}
return word;
}
public void totalMemory(int mem1, int mem2, int mem3)
{
int iq = (mem1 + mem2 + mem3);
System.out.println("");
if(iq == 3)
{
System.out.println("YOU GOT THEM ALL");
}
else if(iq <= 2 || iq >= 1)
{
System.out.println("YOU MISSED A TOTAL OF " + (3 - iq));
}
else if(iq == 0)
{
System.out.println("HA! YOU MISSED THEM ALL");
}
}
}
total points is a variable from match2 class and iq from match3 class. Any help with any methods I could use to make this happen would be much appreciated. Thank You

Well ... besides the fact you are not following any code convention, Like class names should start with a capital letter and public static final fields (like totalpoints and iq) should be all Uppercase (code conventions, you are not sharring match2 and match3 codes, without it we can't understand what is happening inside those classes.
But you can do a simple test and assign a value to match2.totalpoints and match3.iq and you are going to see the summing of these two values being printed by the last system.out you put.
good luck and good Java studies!

Are the int variables you're trying to use inside child classes of your main parent class? Did you extend the child classes in your main parent class?
Class #1:
public int firstVar(int someNum) {
//code here
return someNum;
}
Class #2:
public int secondVar(int otherNum) {
//code here
return otherNum;
}
Class #3 Class with Main Method -
public class mainClass extends class#1; //etc
//code here and finally print out the finished number
You could try extending one of the classes that has an int you need into another one of the classes with the other int you need and then just extending that second class into your main, OR you could try completely redefining your classes and just placing all the ints you need into one separate class and then extending that single one into your main.

So I finally got it to work. The problem, I guess, was that I was trying to add together the variables from the other classes(match2 and match3) outside the main function within the class(match1) I was trying to add them together. All I did was move the expression adding the variables together from the top to inside the main function like this:
public static int finished;
public static void main(String[] args) throws InterruptedException {
// TODO Auto-generated method stub
Scanner s = new Scanner(System.in);
System.out.println("THIS IS YOUR OWN EXCLUSIVE IQ TEST OR MEMORY QUIZ OR WHATEVER....");
System.out.println("");
System.out.println("When taking the quiztest you have only two seconds before making each guess");
match2 m = new match2();
finished = (match2.totalpoints + match3.iq);
System.out.println("THAT MEANS ACCORDING TO YOUR QUIZTEST YOU'VE GOT AN IQ OF " + finished + " POINTS");
}
}
Thanks for all the help from everyone.

Smth. like this. You have lot's of code duplication
public class MatchRunner {
public static void main(String... args) throws InterruptedException {
new MatchRunner().start();
}
public void start() throws InterruptedException {
System.out.println("THIS IS YOUR OWN EXCLUSIVE IQ TEST OR MEMORY QUIZ OR WHATEVER....");
System.out.println();
System.out.println("When taking the quiztest you have only two seconds before making each guess");
int totalPoints = new Match2().getTotalPoints();
System.out.println("For the next part of your IQ Assesment");
System.out.println("just type back the words in CAPSLOCK in CAPSLOCK");
int iq = new Match3().getIQ();
System.out.println("THAT MEANS ACCORDING TO YOUR QUIZTEST YOU'VE GOT AN IQ OF " + (totalPoints + iq) + " POINTS");
}
}
public class Match2 {
public int getTotalPoints() throws InterruptedException {
try (Scanner scan = new Scanner(System.in)) {
int totalPoints = calc(scan, "first", "nice +1 try", "almost");
totalPoints += calc(scan, "next", "good", "almost");
totalPoints += calc(scan, "final", "great", "eeeh buzer sound");
printTotalPoints(totalPoints);
return totalPoints;
}
}
private static void countdown() throws InterruptedException {
for (int i = 5; i > 0; i--) {
Thread.sleep(750);
System.out.println(i + "...");
}
}
private static int calc(Scanner scan, String strSet, String strEqual, String strNotEqual) throws InterruptedException {
System.out.println("press ENTER for your " + strSet + " set...");
Random random = new Random();
scan.nextLine();
countdown();
int sum = 0;
for (int i = 0; i < 4; i++)
sum += random.nextInt(9) + 1;
System.out.println(sum);
for (int i = 0; i < 10; i++)
System.out.println();
int guess = scan.nextInt();
System.out.println(guess == sum ? strEqual : strNotEqual);
return guess == sum ? 1 : 0;
}
private static void printTotalPoints(int totalPoints) {
System.out.println();
if (totalPoints == 3)
System.out.println("YOU GOT THEM ALL");
else if (totalPoints <= 2 && totalPoints >= 1)
System.out.println("YOU MISSED A TOTAL OF " + (3 - totalPoints));
else if (totalPoints == 0)
System.out.println("HA! YOU MISSED THEM ALL");
}
}
public class Match3 {
public int getIQ() throws InterruptedException {
try (Scanner scan = new Scanner(System.in)) {
Random random = new Random();
Supplier<String> getWord1 = () -> getWord(random, "DOG", "CAT", "BIRD");
Supplier<String> getWord2 = () -> getWord(random, "FOOD", "MUD", "GRAINS");
Supplier<String> getWord3 = () -> getWord(random, "TRAM", "BUS", "BICYCLE");
Supplier<String> getWord4 = () -> getWord(random, "MALL", "PARK", "POOL");
int iq = calc(scan, getWord1, getWord2, "ate the");
iq += calc(scan, getWord1, getWord3, "drove the");
iq += calc(scan, getWord1, getWord4, "visited the");
printIq(iq);
return iq;
}
}
private static void countdown() throws InterruptedException {
System.out.println("READY...");
Thread.sleep(1000);
System.out.println("SET...");
Thread.sleep(1000);
}
public int calc(Scanner scan, Supplier<String> wordOne, Supplier<String> wordTwo, String strMsq) throws InterruptedException {
System.out.println("Press ENTER when ready");
scan.nextLine();
countdown();
String a = wordOne.get();
String b = wordTwo.get();
System.out.println("The " + a + ' ' + strMsq + ' ' + b);
String wordGroup = a + ' ' + b;
for (int i = 0; i <= 10; i++)
System.out.println();
String wordGuess = scan.nextLine();
System.out.println(wordGroup.equals(wordGuess) ? "awesome cock muncher a match" : "nope");
return wordGroup.equals(wordGuess) ? 1 : 0;
}
private static String getWord(Random random, String one, String two, String three) {
int cv = random.nextInt(3) + 1;
if (cv == 1)
return one;
if (cv == 2)
return two;
if (cv == 3)
return three;
return "";
}
public void printIq(int iq) {
System.out.println();
if (iq == 3)
System.out.println("YOU GOT THEM ALL");
else if (iq <= 2 || iq >= 1)
System.out.println("YOU MISSED A TOTAL OF " + (3 - iq));
else if (iq == 0)
System.out.println("HA! YOU MISSED THEM ALL");
}
}

How can I put the item order in a different class?

package project;
import java.util.ArrayList;
import java.util.Scanner;
public class project {
public static void main(String[] args) {
// TODO Auto-generated method stub
//Setting up scanner
Scanner input = new Scanner(System.in);
//Variable to allow user to quit input
String quit = "done";
//Constants
double salesTax = 0.11;
double spagPrice = 7;
double ramenPrice = 4;
double pepperPrice = 9;
double steakPrice = 12;
double tunaPrice = 6;
//Constants for loop
double listTime = 1;
double listMax = 10;
//Variable for loop
double itemEntry = 0;
//Keeps running total of item prices
double priceAdd = 0;
//Initializes array lists
ArrayList<String> itemList = new ArrayList<String>();
ArrayList<Integer> priceList = new ArrayList<Integer>();
ArrayList<Integer> buyList = new ArrayList<Integer>();
ArrayList<String> buyitemList = new ArrayList<String>();
//Adds food names to the correct array
itemList.add("Spaghetti Tacos");
itemList.add("Ramen Pizza");
itemList.add("Stuffed Bell Pepper");
itemList.add("Mushroom Steak");
itemList.add("Tuna Suprise");
//Adds prices to the price array
priceList.add(7);
priceList.add(4);
priceList.add(9);
priceList.add(12);
priceList.add(6);
System.out.println("Please enter a number to indicate your desired item.
Type 'done' when you are done or enter up to 10 items.");
System.out.println(" " + "1" + " " + " " + " " + "2" + " " + " " + " " +
"3" + " " + " " + " " + "4" + " " + " " + " " + "5");
System.out.println(itemList);
System.out.println("Prices: " + priceList);
orderEntry (quit, listTime, listMax, priceAdd, buyitemList);
/** while (quit != "done" || listTime <= listMax)
{
System.out.println("Please enter item " + listTime + " :");
itemEntry = input.nextInt();
if (itemEntry == 1){
priceAdd = spagPrice;
buyitemList.add("Spaghetti Tacos");
}
else if (itemEntry == 2){
priceAdd = ramenPrice;
buyitemList.add("Ramen Pizza");
}
else if (itemEntry == 3){
priceAdd = pepperPrice;
buyitemList.add("Stuffed Bell Pepper");
}
else if (itemEntry == 4){
priceAdd = steakPrice;
buyitemList.add("Mushroom Steak");
}
else if (itemEntry == 5){
priceAdd = tunaPrice;
buyitemList.add("Tuna Suprise");
}
else {
priceAdd = 0;
}
buyList.add((int) priceAdd);
listTime += listTime;
}
*/
double amntTacos = 0;
double amntPizza = 0;
double amntPepper = 0;
double amntSteak = 0;
double amntTuna = 0;
double tacoPrice = 0;
double pizzaPrice = 0;
double belPrice = 0;
double mushPrice = 0;
double suprisePrice = 0;
public orderEntry(speTacos)
{
this.orderEntry = amntTacos;
}
public orderEntry(ramPizza)
{
this.orderEntry = amntPizza;
}
public orderEntry(belPepper)
{
this.orderEntry = amntPepper;
}
public orderEntry(musSteak)
{
this.orderEntry = amntSteak;
}
public orderEntry(tunSup)
{
this.orderEntry = amntTuna;
}
tacoPrice = spagPrice * amntTacos;
pizzaPrice = ramenPrice * amntPizza;
belPrice = pepperPrice * amntPepper;
mushPrice = steakPrice * amntSteak;
suprisePrice = tunaPrice * amntTuna;
System.out.println("---------------------");
System.out.println("---------------------");
double subTotal = 0;
double taxAmount = 0;
double totalPrice = 0;
//for (int i : buyList) {
// subTotal = subTotal + i;
//}
subTotal = tacoPrice + pizzaPrice + belPrice + mushPrice + suprisePrice;
taxAmount = subTotal * salesTax;
totalPrice = subTotal + taxAmount;
System.out.println("You have chosen the following items: " +
buyitemList);
System.out.println("---------------------");
System.out.println("Your Subtotal is: $" + subTotal);
System.out.println("Your Tax amount is: $" + taxAmount);
System.out.println("Your Final Total is: $" + totalPrice);
package project;
import java.util.ArrayList;
import java.util.Scanner;
public class orderEntry (String quit, double itemEntry, double spagPrice,
double
ramenPrice, double pepperPrice, double steakPrice, double tunaPrice, double
listTime, double listMax, Scanner input, double priceAdd, ArrayList buyList)
{
Scanner input = new Scanner(System.in);
double speTacos = 0;
double ramPizza = 0;
double belPepper = 0;
double musSteak = 0;
double tunSup = 0;
while (quit != "done" || listTime <= listMax)
{
System.out.println("Please enter item " + listTime + " :");
itemEntry = input.nextInt();
if (itemEntry == 1){
priceAdd = spagPrice;
speTacos = speTacos + 1;
}
else if (itemEntry == 2){
priceAdd = ramenPrice;
ramPizza = ramPizza + 1;
}
else if (itemEntry == 3){
priceAdd = pepperPrice;
belPepper = belPepper + 1;
}
else if (itemEntry == 4){
priceAdd = steakPrice;
musSteak = musSteak + 1;
}
else if (itemEntry == 5){
priceAdd = tunaPrice;
tunSup = tunSup + 1;
}
else {
priceAdd = 0;
}
buyList.add((int) priceAdd);
listTime += listTime;
}
public void getSpagetti(){
return speTacos;
}
public void getRamen(){
return ramPizza;
}
public void getPepper(){
return belPepper;
}
public void getSteak(){
return musSteak;
}
public void getTuna(){
return tunSup;
}
}
OK, trying this now. Still not quite right....
The instructions were:
A class named orderEntry should also be created with the appropriate
constructor, accessor and mutator methods. As the user is entering the
items they wish to order, these items should be placed into a separate
array as they are ordered. Once the user is done entering items, the
program should use the array to output all items that were ordered to
the screen, with their prices.

This is not a solution i would recommend, but for the sake of learning how to use methods:
just put it in another class and call the method from there. Give the methods the parameters needed.
public class whileMethod(String quit, double listTime, double listMax, Scanner input, double priceAdd, ArrayList<String> buyItemList, ) {
while (quit != "done" || listTime <= listMax)
{
System.out.println("Please enter item " + listTime + " :");
itemEntry = input.nextInt();
if (itemEntry == 1){
priceAdd = spagPrice;
buyitemList.add("Spaghetti Tacos");
}
else if (itemEntry == 2){
priceAdd = ramenPrice;
buyitemList.add("Ramen Pizza");
}
else if (itemEntry == 3){
priceAdd = pepperPrice;
buyitemList.add("Stuffed Bell Pepper");
}
else if (itemEntry == 4){
priceAdd = steakPrice;
buyitemList.add("Mushroom Steak");
}
else if (itemEntry == 5){
priceAdd = tunaPrice;
buyitemList.add("Tuna Suprise");
}
else {
priceAdd = 0;
}
buyList.add((int) priceAdd);
listTime += listTime;
}
From here u can call the method in the class:
whileMethod(and all the attributtes needed)

Keeping a total score in Java hangman game

import java.util.Scanner;
import javax.swing.JOptionPane;
public class Hangman {
public static void main(String[] args) {
String playAgainMsg = "Would you like to play again?";
String pickCategoryMsg = "You've tried all the words in this category!\nWould you like to choose another category?";
int winCounter = 0, loseCounter = 0, score = 0;
String[] words;
int attempts = 0;
String wordToGuess;
boolean playCategory = true, playGame = true;
int totalCounter = 0, counter;
while (playCategory && playGame)
{
while (playCategory && playGame) {
words = getWords();
counter = 0;
while (playGame && counter < words.length) {
wordToGuess = words[counter++];
if (playHangman(wordToGuess)) {
winCounter++;
System.out.println("You win! You have won " + winCounter + " game(s)." + " You have lost " + loseCounter + " game(s).");
} else {
loseCounter++;
System.out.println("You lose! You have lost " + loseCounter + " game(s)." + " You have won " + winCounter + " game(s).");
}
if (counter < words.length) playGame = askYesNoQuestion(playAgainMsg);
}
if (playGame) playCategory = askYesNoQuestion(pickCategoryMsg);
}
}
}
public static boolean playHangman(String wordToGuess) {
String[] computerWord = new String[wordToGuess.length()];
String[] wordWithDashes = new String[wordToGuess.length()];
for (int i = 0; i < computerWord.length; i++) {
computerWord[i] = wordToGuess.substring(i, i+1);
wordWithDashes[i] = "_";
}
Scanner in = new Scanner(System.in);
int attempts = 0, maxAttempts = 7;
boolean won = false;
int points = 0;
while (attempts < maxAttempts && !won) {
String displayWord = "";
for (String s : wordWithDashes) displayWord += " " + s;
System.out.println("\nWord is:" + displayWord);
System.out.print("\nEnter a letter or guess the whole word: ");
String guess = in.nextLine().toLowerCase();
if (guess.length() > 1 && guess.equals(wordToGuess)) {
won = true;
} else if (wordToGuess.indexOf(guess) != -1) {
boolean dashes = false;
for (int i = 0; i < computerWord.length; i++) {
if (computerWord[i].equals(guess)) wordWithDashes[i] = guess;
else if (wordWithDashes[i].equals("_")) dashes = true;
}
won = !dashes; // If there are no dashes left, the whole word has been guessed
} else {
drawHangmanDiagram(attempts);
System.out.println("You've used " + ++attempts + " out of " + maxAttempts + " attempts.");
}
}
int score = 0;
score = scoreGame(attempts);
System.out.println("Your score is: " + score);
return won;
}
//should take in a failure int from the main method that increments after every failed attempt
public static void drawHangmanDiagram(int failure)
{
if (failure == 0)
System.out.println("\t+--+\n\t| |\n\t|\n\t|\n\t|\n\t|\n\t|\n\t|\n\t+--");
else if (failure == 1)
System.out.println("\t+--+\n\t| |\n\t| #\n\t|\n\t|\n\t|\n\t|\n\t|\n\t+--");
else if (failure == 2)
System.out.println("\t+--+\n\t| |\n\t| #\n\t| /\n\t|\n\t|\n\t|\n\t|\n\t+--");
else if (failure == 3)
System.out.println("\t+--+\n\t| |\n\t| #\n\t| / \\\n\t|\n\t|\n\t|\n\t|\n\t+--");
else if (failure == 4)
System.out.println("\t+--+\n\t| |\n\t| #\n\t| /|\\\n\t| |\n\t|\n\t|\n\t|\n\t+--");
else if (failure == 5)
System.out.println("\t+--+\n\t| |\n\t| #\n\t| /|\\\n\t| |\n\t| /\n\t|\n\t|\n\t+--");
else if (failure == 6)
System.out.println("\t+--+\n\t| |\n\t| #\n\t| /|\\\n\t| |\n\t| / \\\n\t|\n\t|\n\t+--");
}
// Asks user a yes/no question, ensures valid input
public static boolean askYesNoQuestion(String message) {
Scanner in = new Scanner(System.in);
boolean validAnswer = false;
String answer;
do {
System.out.println(message + " (Y/N)");
answer = in.nextLine().toLowerCase();
if (answer.matches("[yn]")) validAnswer = true;
else System.out.println("Invalid input! Enter 'Y' or 'N'.");
} while (!validAnswer);
return answer.equals("y");
}
public static boolean askForCategory(int category) {
Scanner in = new Scanner(System.in);
boolean validAnswer = false;
String answer;
do {
System.out.println("\nWould you like to play again? (Y/N)");
answer = in.nextLine().toLowerCase();
if (answer.matches("[yn]")) validAnswer = true;
else System.out.println("Invalid input! Enter 'Y' or 'N'.");
} while (!validAnswer);
return answer.equals("y");
}
// Asks the user to pick a category
public static String[] getWords() {
String[] programming = {"java", "pascal", "python", "javascript", "fortran", "cobol"};
String[] sports = {"gymnastics", "badminton", "athletics", "soccer", "curling", "snooker", "hurling", "gaelic", "football", "darts"};
String[] result = {""};
Scanner in = new Scanner(System.in);
boolean validAnswer = false;
String answer;
do {
System.out.println("Pick a category:\n1. Programming\n2. Sports");
answer = in.nextLine().toLowerCase();
if (answer.matches("[1-2]")) validAnswer = true;
else System.out.println("Invalid input! Enter the number of the category you want.");
} while (!validAnswer);
int selection = Integer.parseInt(answer);
switch (selection) {
case 1: result = randomOrder(programming); break;
case 2: result = randomOrder(sports); break;
}
return result;
}
// Sorts a String array in random order
public static String[] randomOrder(String[] array) {
int[] order = uniqueRandoms(array.length);
String[] result = new String[array.length];
for (int i = 0; i < order.length; i++) {
result[i] = array[order[i]];
}
return result;
}
// Generates an array of n random numbers from 0 to n-1
public static int[] uniqueRandoms(int n) {
int[] array = new int[n];
int random, duplicateIndex;
for (int i = 0; i < n; ) {
random = (int) (Math.random() * n);
array[i] = random;
for (duplicateIndex = 0; array[duplicateIndex] != random; duplicateIndex++);
if (duplicateIndex == i) i++;
}
return array;
}
public static int scoreGame(int attempts)
{
int score = 0;
switch (attempts)
{
case 0: score = 70; break;
case 1: score = 60; break;
case 2: score = 50; break;
case 3: score = 40; break;
case 4: score = 30; break;
case 5: score = 20; break;
case 6: score = 10; break;
case 7: score = 0; break;
}
return score;
}
}
I have got it working so that it keeps count of the games won and lost, as well as assigning a score based on the amount of attempts/lives saved but I haven't been able to find a way to get it to keep a total score for all of the games played. Each game unfortunately has a seperate score. If anyone can advise me on a way of doing this, it would be greatly appreciated.

Create an int totalScore variable where winCounter, loseCounter and score are defined. Then increment it after each call to scoreGame()
score = scoreGame(attempts);
totalScore += score;
System.out.println("Your score is: " + score);
If you want to permanently save statistics between sessions then it's a whole nother story. You would need to write your scores to a file after each round and then start your program by reading this score file. It's hardly impossible, but requires a bit more code.

Loop back the beginning of the code

So my code works completely; the only thing now is a very simple problem that I cannot figure out. I have to make the program loop back to the beginning if the user type restart and I cannot think how to that.
import java.util.Scanner;
public class MutantGerbil {
public static String []foodName;
public static int [] maxAmount;
public static Gerbil [] gerbilAttributes;
public static int [] consumption;
public static void main(String [] args){
Scanner keyboard = new Scanner(System.in);
String userInput1 = keyboard.nextLine();
int food = Integer.parseInt(userInput1);
foodName = new String[food]; //array of food names
maxAmount = new int[food]; // array of max amount of food given everyday
for (int i = 0; i < food; i++){
System.out.println("Name of food item" + (i+1) +": " );
String foodType = keyboard.nextLine();
foodName[i] = foodType;
System.out.println("Maximum consumed per gerbil: ");
String consumption = keyboard.nextLine();
int consumption2 = Integer.parseInt(consumption);
maxAmount [i] = consumption2;
}
System.out.println("How many gerbils are in the lab?");
String userInput2 = keyboard.nextLine();
int numberOfGerbils = Integer.parseInt(userInput2);
gerbilAttributes = new Gerbil [numberOfGerbils];// Array with the gerbil attributes
for (int i = 0; i < numberOfGerbils; i++)
{
consumption = new int[food]; // Array with amount of the food the gerbil eat each day
System.out.println("Gerbil" + (i+1) + "'s" + "lab ID: ");
String gerbilID = keyboard.nextLine();
System.out.println("What name did the students give to "+ gerbilID);
String gerbilName = keyboard.nextLine();
for (int j = 0; j < food; j++)
{
System.out.println(gerbilID + " eats how many " + foodName[j] + " per day?");
String gerbilComsumption = keyboard.nextLine();
int gerbilFood = Integer.parseInt(gerbilComsumption);
if (gerbilFood <= maxAmount[j])
{
consumption[j] = gerbilFood;
}
}
System.out.println("Does " + gerbilID + " bite?");
boolean biter = keyboard.nextBoolean();
System.out.println("Does " + gerbilID + " try to escape?");
boolean flightRisk = keyboard.nextBoolean();
keyboard.nextLine();
Gerbil temp = new Gerbil (gerbilID, gerbilName, consumption, biter, flightRisk);
gerbilAttributes [i] = temp;
}
boolean end1 = false;
while (! end1){
System.out.println("What information would you like to know");
sortGerbilArray (gerbilAttributes);
String userInput3 = keyboard.nextLine();
if (userInput3.equalsIgnoreCase("average"))
{
String average1 = foodAverage();
System.out.println(average1);
}
if (userInput3.equalsIgnoreCase("search"))
{
System.out.println("Enter a Gerbil ID to search for");
userInput3 = keyboard.nextLine();
Gerbil findGerbil = searchForGerbil(userInput3);
if (findGerbil == null)
{
System.out.println("Error");
}
else {
String h = ("Name: " + findGerbil.getName());
if (findGerbil.getAttacker())
{
h+= " (will bite, ";
}
else
{
h+= " (will not bite, ";
}
if (findGerbil.getFilghtRisk())
{
h+= "will run away), ";
}
else
{
h+= "will not run away), ";
}
h+= "Food:";
for (int i = 0; i < foodName.length; i++){
h+=" " + foodName[i] + "-";
h+= findGerbil.getConsumption2()+"/"+ maxAmount[i];
if (i < foodName.length-1)
{
h+=",";
}
System.out.println(h);
}
}
}
if (userInput3.equalsIgnoreCase("restart")){
}
if (userInput3.equalsIgnoreCase("quit"))
{
System.out.println("Good-bye!");
break;
}
}
}
private static void sortGerbilArray(Gerbil[]sortGerbil){
for (int i = 0; i < sortGerbil.length; i++){
for (int j = 0; j < sortGerbil.length - i - 1; j++){
if(sortGerbil[j].getID().compareToIgnoreCase(sortGerbil[j+1].getID())>0){
Gerbil t = sortGerbil[j];
sortGerbil[j] = sortGerbil[j+1];
sortGerbil[j+1] = t;
}
}
}
}
private static String foodAverage()
{
double average = 0.0;
double totalMaxAmount = 0;
double totalConsumption = 0;
String averageFood = "";
for (int i = 0 ; i < gerbilAttributes.length;i++)
{
for(int j = 0; j < maxAmount.length; j++)
{
totalMaxAmount += maxAmount[j];
}
totalConsumption += gerbilAttributes[i].getConsumption();
average = totalConsumption/totalMaxAmount*100;
averageFood += gerbilAttributes[i].getID() + "(" + gerbilAttributes[i].getName() + ")" + Math.round(average) + "%\n";
totalMaxAmount = 0;
totalConsumption = 0;
}
return averageFood;
}
private static Gerbil searchForGerbil (String x) {
for (Gerbil l: gerbilAttributes){
if (l.getID().equals(x)){
return l;
}
}
return null;
}
}

there are two solutions.
1. wrap your code in "while" loop. but it will be difficult for you because your code is so messy :(
change the code as follow
import java.util.Scanner; public class MutantGerbil {
public static String []foodName;
public static int [] maxAmount;
public static Gerbil [] gerbilAttributes;
public static int [] consumption;
public static void main(String [] args){
Scanner keyboard = new Scanner(System.in);
String userInput1 = keyboard.nextLine();
int food = Integer.parseInt(userInput1);
foodName = new String[food]; //array of food names
maxAmount = new int[food]; // array of max amount of food given everyday
for (int i = 0; i < food; i++){
System.out.println("Name of food item" + (i+1) +": " );
String foodType = keyboard.nextLine();
foodName[i] = foodType;
System.out.println("Maximum consumed per gerbil: ");
String consumption = keyboard.nextLine();
int consumption2 = Integer.parseInt(consumption);
maxAmount [i] = consumption2;
}
System.out.println("How many gerbils are in the lab?");
String userInput2 = keyboard.nextLine();
int numberOfGerbils = Integer.parseInt(userInput2);
gerbilAttributes = new Gerbil [numberOfGerbils];// Array with the gerbil attributes
for (int i = 0; i < numberOfGerbils; i++)
{
consumption = new int[food]; // Array with amount of the food the gerbil eat each day
System.out.println("Gerbil" + (i+1) + "'s" + "lab ID: ");
String gerbilID = keyboard.nextLine();
System.out.println("What name did the students give to "+ gerbilID);
String gerbilName = keyboard.nextLine();
for (int j = 0; j < food; j++)
{
System.out.println(gerbilID + " eats how many " + foodName[j] + " per day?");
String gerbilComsumption = keyboard.nextLine();
int gerbilFood = Integer.parseInt(gerbilComsumption);
if (gerbilFood <= maxAmount[j])
{
consumption[j] = gerbilFood;
}
}
System.out.println("Does " + gerbilID + " bite?");
boolean biter = keyboard.nextBoolean();
System.out.println("Does " + gerbilID + " try to escape?");
boolean flightRisk = keyboard.nextBoolean();
keyboard.nextLine();
Gerbil temp = new Gerbil (gerbilID, gerbilName, consumption, biter, flightRisk);
gerbilAttributes [i] = temp;
}
boolean end1 = false;
while (! end1){
System.out.println("What information would you like to know");
sortGerbilArray (gerbilAttributes);
String userInput3 = keyboard.nextLine();
if (userInput3.equalsIgnoreCase("average"))
{
String average1 = foodAverage();
System.out.println(average1);
}
if (userInput3.equalsIgnoreCase("search"))
{
System.out.println("Enter a Gerbil ID to search for");
userInput3 = keyboard.nextLine();
Gerbil findGerbil = searchForGerbil(userInput3);
if (findGerbil == null)
{
System.out.println("Error");
}
else {
String h = ("Name: " + findGerbil.getName());
if (findGerbil.getAttacker())
{
h+= " (will bite, ";
}
else
{
h+= " (will not bite, ";
}
if (findGerbil.getFilghtRisk())
{
h+= "will run away), ";
}
else
{
h+= "will not run away), ";
}
h+= "Food:";
for (int i = 0; i < foodName.length; i++){
h+=" " + foodName[i] + "-";
h+= findGerbil.getConsumption2()+"/"+ maxAmount[i];
if (i < foodName.length-1)
{
h+=",";
}
System.out.println(h);
}
}
}
if (userInput3.equalsIgnoreCase("restart")){
main();
}
if (userInput3.equalsIgnoreCase("quit"))
{
System.out.println("Good-bye!");
break;
}
}
}
private static void sortGerbilArray(Gerbil[]sortGerbil){
for (int i = 0; i < sortGerbil.length; i++){
for (int j = 0; j < sortGerbil.length - i - 1; j++){
if(sortGerbil[j].getID().compareToIgnoreCase(sortGerbil[j+1].getID())>0){
Gerbil t = sortGerbil[j];
sortGerbil[j] = sortGerbil[j+1];
sortGerbil[j+1] = t;
}
}
}
}
private static String foodAverage()
{
double average = 0.0;
double totalMaxAmount = 0;
double totalConsumption = 0;
String averageFood = "";
for (int i = 0 ; i < gerbilAttributes.length;i++)
{
for(int j = 0; j < maxAmount.length; j++)
{
totalMaxAmount += maxAmount[j];
}
totalConsumption += gerbilAttributes[i].getConsumption();
average = totalConsumption/totalMaxAmount*100;
averageFood += gerbilAttributes[i].getID() + "(" + gerbilAttributes[i].getName() + ")" + Math.round(average) + "%\n";
totalMaxAmount = 0;
totalConsumption = 0;
}
return averageFood;
}
private static Gerbil searchForGerbil (String x) {
for (Gerbil l: gerbilAttributes){
if (l.getID().equals(x)){
return l;
}
}
return null;
} }

How to read lines from a file and assign the lines to an array?

Currently, I'm trying to read in a .dat file and assign various lines into an array. The file will provide items like "a100" and "q80" which I will have to separate into categories by letter and then have different grades as an array for each category. Right now, this is what I have, but I'm getting a lot of run-time errors when I try various things. Is there something I'm missing here?
Some of the errors I'm having:
When I execute case 'P', it prints this out: WeightedGrades#13105f32
When I try to execute cases C, A or D, this happens: Exception in thread "main" java.lang.NoSuchMethodError: WeightedGrades.deleteGrade(Ljava/lang/String;)Z
WeightedGrades class:
public class WeightedGrades {
private String name;
private int numGrades;
private String[] grades;
public static final double ACTV_WT = 0.05, QUIZ_WT = 0.10, PROJ_WT = 0.25, EXAM_WT = 0.30, FINAL_EXAM_WT = 0.30;
public WeightedGrades(String nameIn, int numGradesIn, String[] gradesIn) {
name = nameIn;
numGrades = numGradesIn;
grades = gradesIn;
}
public String getName() {
return name;
}
public int getNumGrades() {
return numGrades;
}
public String[] getGrades() {
return grades;
}
public double[] gradesByCategory(char categoryChar) {
int count = 0;
for (int i = 0; i < grades.length; i++) {
if (categoryChar == grades[i].charAt(0)) {
count++;
}
}
double[] gradesNew = new double[count];
count = 0;
for( int i = 0; i < numGrades; i++) {
if (categoryChar == grades[i].charAt(0)) {
gradesNew[count] = Double.parseDouble(grades[i].substring(1));
count++;
}
}
return gradesNew;
}
public String toString() {
String result = "\tStudent Name: " + getName()
+ "\n\tActivities: " + gradesByCategory('A')
+ "\n\tQuizzes: " + gradesByCategory('Q')
+ "\n\tProjects: " + gradesByCategory('P')
+ "\n\tExams: " + gradesByCategory('E')
+ "\n\tFinal Exam: " + gradesByCategory('F')
+ "\n\tCourse Average: " + courseAvg();
return result;
}
public void addGrade(String newGrade) {
if (numGrades >= grades.length) {
increaseGradesCapacity();
}
grades[numGrades] = newGrade;
numGrades++;
}
public boolean deleteGrade(String gradeDelete) {
boolean delete = false;
int deleteIndex = -1;
for (int i = 0; i < numGrades; i++) {
if (gradeDelete.charAt(0) == grades[i].charAt(0) &&
Double.parseDouble(gradeDelete.substring(1))
== Double.parseDouble(grades[i].substring(1))) {
deleteIndex = i;
}
}
if (deleteIndex > -1) {
for (int i = deleteIndex; i < numGrades - 1; i++) {
grades[i] = grades[i + 1];
}
grades[numGrades - 1] = "";
numGrades--;
return true;
}
else {
return false;
}
}
public void increaseGradesCapacity() {
String[] temporary = new String[grades.length + 1];
for (int i = 0; i < grades.length; i++) {
temporary[i] = grades[i];
}
grades = temporary;
}
public double average(double[] newArray) {
if (newArray.length == 0) {
return 0.0;
}
double sum = 0;
double average = 0;
for ( int i = 0; i < newArray.length; i++) {
sum += newArray[i];
average = sum / newArray.length;
}
return average;
}
public double courseAvg() {
double actvAvg = 0.0;
double quizAvg = 0.0;
double projAvg = 0.0;
double examAvg = 0.0;
double finalAvg = 0.0;
double avg = 0.0;
if (!numGrades.length == 0) {
avg = actvAvg * ACTV_WT + quizAvg * QUIZ_WT + projAvg * PROJ_WT + examAvg * EXAM_WT + finalAvg * FINAL_EXAM_WT;
}
return avg;
}
}
Second class
import java.util.Scanner;
import java.io.IOException;
public class WeightedGradesApp {
public static void main(String[] args) throws IOException {
String name = "";
int numGrades = 0;
String[] grades = new String[13];
String code = "";
String gradeAdd = "";
String gradeDelete = "";
String categoryIn = "";
WeightedGrades student = new WeightedGrades(name, numGrades, grades);
Scanner userInput = new Scanner(System.in);
if (args == null) {
System.out.println("File name was expected as a run argument.");
System.out.println("Program ending.");
return;
}
else {
System.out.println("File read in and WeightedGrades object created.");
System.out.println("");
System.out.println("Player App Menu");
System.out.println("P - Print Report");
System.out.println("C - Print Category");
System.out.println("A - Add Grade");
System.out.println("D - Delete Grade");
System.out.println("Q - Quit ");
do {
System.out.print("Enter Code [P, C, A, D, or Q]: ");
code = userInput.nextLine();
if (code.length() == 0) {
continue;
}
code = code.toUpperCase();
char codeChar = code.charAt(0);
switch (codeChar) {
case 'P':
System.out.println(student.toString());
break;
case 'C':
System.out.print(" Category: ");
categoryIn = userInput.nextLine();
char categoryChar = categoryIn.charAt(0);
System.out.println(student.gradesByCategory(categoryChar));
break;
case 'A':
System.out.print(" Grade to add: ");
gradeAdd = userInput.nextLine();
student.addGrade(gradeAdd);
break;
case 'D':
System.out.print(" Grade to delete: ");
gradeDelete = userInput.nextLine();
boolean isDeleted = student.deleteGrade(gradeDelete);
if (isDeleted) {
System.out.println(" Grade deleted");
}
else {
System.out.println(" Grade not found");
}
break;
case 'Q':
break;
default:
}
} while (!code.equalsIgnoreCase("Q"));
}
}
}

For starters your code as is doesn't compile due to the line
if (!numGrades.length == 0) {
This is because numGrades is an int it is a primative type and therefore does not have any property length. I'm assuming what you want here is
if (numGrades != 0) {
Also as I mentioned you are not dealing with reading in the file, you supply the file name but never actually read it, I suggest you look at the Java tutorial on File IO
On this note you do the check args == null this will not check that no args are supplied, try it. what you want is args.length == 0
On your other error I have no idea how you even produced that... I'm assuming it is using an older compiled version of the class where the methods have not being written.