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How to display error message instead of java exception?

I am trying to make a Guessing Game for a Java assignment, I have everything I need except exception handling, you see I'm trying to make it display an error message instead of displaying Exception in thread "main" java.util.InputMismatchException when someone tries to enter a numerical number in alphabetical form. The code I have is followed.
(I know I need a try and catch but I don't know what to put exactly.)
package guessNumber;
import java.util.Scanner;
public class GuessNumberApp {
public static void main(String[] args) {
final int LIMIT = 10;
System.out.println("Guess the number!");
System.out.println("I'm thinking of a number from 1 to " + LIMIT);
System.out.println();
// get a random number between 1 and the limit
double d = Math.random() * LIMIT; // d is >= 0.0 and < limit
int number = (int) d; // convert double to int
number++; // int is >= 1 and <= limit
// prepare to read input from the user
Scanner sc = new Scanner(System.in);
int count = 1;
while (true) {
int guess = sc.nextInt();
System.out.println("You guessed: " + guess);
if (guess < 1 || guess > LIMIT) {
System.out.println("Your Guess is Invalid.");
continue;
}
if (guess < number) {
System.out.println("Too Low.");
} else if (guess > number) {
System.out.println("Too High.");
} else {
System.out.println("You guessed it in " + count + " tries.\n");
break;
}
count++;
}
System.out.println("Bye!");
}
}

try something like that:
try {
int guess = sc.nextInt();
} catch(InputMismatchException e) {
System.out.println("some nice error message");
continue;
}
This would replace
int guess = sc.nextInt();

Why this code prints an infinite amount of "What's your guess?"

I'm trying to make a number guessing game between the range from 1 to 100. The program will stop if the user guesses the correct number.
My current code:
import java.util.Scanner;
import java.util.Random;
public class GuessingGame {
public static void main(String[] args) {
Random randomNumber = new Random();
Scanner reader = new Scanner(System.in);
System.out.println("What's your guess? ");
int n = reader.nextInt();
reader.close();
int Number = randomNumber.nextInt(100 + 1);
int guess = n;
while (guess != Number) {
System.out.println("What's your guess? ");
new Scanner(System.in);
}
if (guess == Number) {
System.out.println("Your have guessed the correct number! ");
}
else if (guess < Number) {
System.out.println("Your number is too low! ");
}
else if (guess > Number) {
System.out.println("Your number is too high! ");
}
}
}

This is where using the formatter in your IDE is helpful. You would be able to see that the if conditions which are after the loop should be inside the loop and you should be reading the reading the guess from input.
BTW You should never close the input unless you explicitly don't want to read anything from it ever again.
try
Random randomNumber = new Random();
Scanner reader = new Scanner(System.in);
int number = randomNumber.nextInt(100 + 1);
while(true) {
System.out.println("What's your guess? ");
int guess = reader.nextInt();
if (guess == Number) {
System.out.println("You have guessed the correct number! ");
break; // no need to guess more
} else if (guess < Number) {
System.out.println("Your number is too low! ");
} else if (guess > Number) {
System.out.println("Your number is too high! ");
}
}

Change your while loop to
while (guess != Number) {
if (guess == Number) {
System.out.println("Your have guessed the correct number! ");
break;
}
else if (guess < Number) {
System.out.println("Your number is too low! ");
}
else if (guess > Number) {
System.out.println("Your number is too high! ");
}
System.out.println("Guess Again?");
guess = reader.nextInt();
}

The while loop is infinite loop. Also, you should avoid using 'Number' as variable name as there is a class in java with the same name java.lang.Number. You can also need any number of variables using single object of Scanner class. So, a cleaner code would look like this :
while (guess != number) {
System.out.println("What's your guess? ");
guess = reader.nextInt();
}
Now, if you solve above problems, your code will never go to the two else-if blocks, because by the time your while loop breaks you will have 'guess' always be equal to 'number'. I think what you are trying to achieve here is :
while (guess != number) {
System.out.println("What's your guess? ");
guess = reader.nextInt();
if (guess == number) {
System.out.println("Your have guessed the correct number! ");
}
else if (guess < number) {
System.out.println("Your number is too low! ");
}
else if (guess > number) {
System.out.println("Your number is too high! ");
}
}

while loop in java number guess

So I've been working on this and it works fine, only problem is that after you guess a number that's not between 1 and 100, it goes onto the next guess when the try shouldn't count against you. I've attached a picture of what the output SHOULD look like.
Do I need a 'for' statement or a boolean variable?
And here is my code:
Random generator = new Random();
//import the scanner for prompt
Scanner input = new Scanner(System.in);
//integers for the secret number, input guess of the secret number, tries and limit to tries
int numberToGuess = 1 + generator.nextInt(100);
int numberOfTries = 1;
int limit = 10;
int guess;
//prompt user to enter a number to guess
System.out.println("You have 10 tries to guess a number between 1 and 100");
//start of while loop
while (numberOfTries <= 10) {
System.out.print("Guess number " + numberOfTries + ": ");
guess = input.nextInt();
//if else statements (outputs)
if (guess < numberToGuess)
System.out.println("Your guess is too low. Try again.");
else if (guess > 100)
System.out.println("Guesses should be between 1 and 100.");
else if (guess > numberToGuess)
System.out.println("Too high. Try again.");
else if (guess == numberToGuess) {
System.out.println("Congratulations! You have correctly guess the number in " + numberOfTries + " tries");
System.exit(0);
} else {
System.out.println("Sorry, you did not guess the guess the answer in 10 tries");
System.out.println("The number was " + numberToGuess);
//break to end while loop
break;
}
numberOfTries++;
// If statement after executing the while loop the output if user loses and answer to secret number
if (numberOfTries > 10) {
System.out.println("Sorry, you did not guess the guess the answer in 10 tries");
System.out.println("The number was " + numberToGuess);
}
}

Don't increment numberOfTries++; if they guess a number outside of the range. Put the increment inside the if statements

Try using a nested do-while loop inside your primary while loop:
//start of while loop
while(numberOfTries <= 10){
//get a valid guess
do{
boolean valid = true;
System.out.print("Guess number " + numberOfTries + ": ");
guess= input.nextInt();
//if else statements (outputs)
if (guess < numberToGuess){
System.out.println("Your guess is too low. Try again.");
valid = false;
}
else if (guess > 100){
System.out.println("Guesses should be between 1 and 100.");
valid = false;
}
while (!valid);
//handle the valid guess
}

Here's how I'd do it. You tell me which one you prefer:
import java.util.Random;
import java.util.Scanner;
/**
* Created by Michael
* Creation date 3/4/2016.
* #link https://stackoverflow.com/questions/35809392/while-loop-in-java-number-guess
*/
public class NumberGuess {
public static final int MIN_VALUE = 1;
public static final int MAX_VALUE = 100;
public static final int MAX_TRIES = 10;
public static void main(String[] args) {
Random generator = new Random();
Scanner input = new Scanner(System.in);
String playAgain;
do {
int answer = MIN_VALUE + generator.nextInt(MAX_VALUE);
System.out.println(String.format("You have %d tries to guess a number between %d and %d", MAX_TRIES, MIN_VALUE, MAX_VALUE));
boolean correct = playGuessingGame(input, answer);
if (!correct) {
System.out.println(String.format("The number was %d", answer));
}
System.out.print("Play again? [Y/N]: ");
playAgain = input.nextLine();
} while ("Y".equalsIgnoreCase(playAgain));
}
public static boolean playGuessingGame(Scanner input, int answer) {
boolean correct = false;
int numTries = 0;
do {
System.out.print(String.format("Guess %d: ", ++numTries));
int guess = Integer.parseInt(input.nextLine());
if (guess < MIN_VALUE) {
System.out.println(String.format("Guess %d is below minimum %d", guess, MIN_VALUE));
} else if (guess > MAX_VALUE) {
System.out.println(String.format("Guess %d is above maximum %d", guess, MAX_VALUE));
} else if (guess < answer) {
System.out.println(String.format("Guess %d is too low. Try again.", guess));
} else if (guess > answer) {
System.out.println(String.format("Guess %d is too high. Try again.", guess));
} else {
System.out.println("Woo hoo! You got it right!");
correct = true;
break;
}
} while (numTries < MAX_TRIES);
return correct;
}
}
You and your professor realize that it's almost impossible to lose this game. Right?
A bisection strategy says you can always get the right answer with 10 tries. Make that number smaller for a challenge.

increamenting should be done inside the if statemnt :D

Do while loop for guessing game

I am writing a simple java guessing game, the game is supposed to randomly pick a number between 1 and 100 and then after you pick the correct number it asks you if you would like to play again. I know i should be able to use a Do while loop to ask if the user would like to play again, but every time I try I cannot make it work. This is my fully functional program without the do while loop. If someone could help me prompt the user if they would like to play again I would be very thankful. I am still very new to programming.
Also I apologize if the indenting isn't 100% correct.
import java.util.Scanner;
import java.util.Random;
public class GuessingGame
{
public static void main (String [] args)
{
//Variables
Random randomNumber = new Random();
Scanner kbd = new Scanner(System.in);
int computerValue = randomNumber.nextInt(100);
int numberOfTries = 0;
int success = 0;
int guess = 0;
//Logic and While Loop
while (success ==0)
{
System.out.println("please enter an integer betwen 1 and 100 inclusive: ");
guess = kbd.nextInt();
numberOfTries++;
if (guess < 1 || guess > 100){
System.out.println("Invalid input");
}
else if (guess == computerValue){
success++;
System.out.println("Congratulations you won! Your numbers of tries was: " + numberOfTries + " and the number was: " + computerValue);
}
else if (guess < computerValue){
System.out.println("Your guess is too low!");
}
else if (guess > computerValue){
System.out.println("Your guess is too high!");
}
}
}
}

Try this:
while(true) {
computerValue = randomNumber.nextInt(100);
numberOfTries = 0;
while (true) {
System.out.println("please enter an integer betwen 1 and 100 inclusive: ");
guess = kbd.nextInt();
numberOfTries++;
if (guess < 1 || guess > 100) System.out.println("Invalid input");
else if (guess == computerValue) {
System.out.println("Congratulations you won! Your numbers of tries was: " + numberOfTries + " and the number was: " + computerValue);
// leave the first loop
break;
}
else if (guess < computerValue) System.out.println("Your guess is too low!");
else if (guess > computerValue) System.out.println("Your guess is too high!");
}
System.out.println("Do you want to play again? (1:Yes/2:No)");
// if input is not yes leave second loop
if(kbd.nextInt() != 1) break;
}

If you want to use a do while loop this would work.
import java.util.Scanner;
import java.util.Random;
public class GuessingGame {
public static void main(String[] args) {
//Variables
Random randomNumber = new Random();
Scanner kbd = new Scanner(System.in);
int computerValue;
int numberOfTries = 0;
int success = 0;
int guess;
boolean playAgain;
//Logic and While Loop
do {
computerValue = randomNumber.nextInt(100);
guess = 0;
playAgain = false;
while (guess != computerValue) {
System.out.println("Please enter an integer betwen 1 and 100 inclusive: ");
guess = kbd.nextInt();
numberOfTries++;
if (guess < 1 || guess > 100) {
System.out.println("Invalid input");
} else if (guess < computerValue) {
System.out.println("Your guess is too low!");
} else if (guess > computerValue) {
System.out.println("Your guess is too high!");
}
}
success++;
System.out.println("Congratulations you won! Your numbers of tries was: " + numberOfTries + " and the number was: " + computerValue);
System.out.println("Would you like to play again?");
switch (kbd.next()) {
case "yes":
playAgain = true;
break;
default:
break;
}
} while (playAgain);
System.out.println("Goodbye");
}
}

Prompt the user if he wants to play again at
else if (guess == computerValue) {
success++;
System.out.println("Congratulations you won! Your numbers of tries was: " + numberOfTries + " and the number was: " + computerValue);
}
If the user inputs yes success--;

I need advice to fix my HighLow code in java

Im fairly new to java and im having trouble getting this to loop? The code works fine, its just that after the user guesses correctly the code stops.
Here is my code:
import java.util.Random;
import java.util.Scanner;
public class Chapter3HighLow {
public static void main (String[] args) {
Scanner input = new Scanner(System.in);
Random random = new Random(); //gives random numbers each time
int correctNum = random.nextInt(100);
int NumberOfTries = 0; // tells how many guesses it took
while (true) {
System.out.println("Hi! Please enter a number between 1-100! (if you would like to quit, please press -1)");
int guess1 = input.nextInt();
NumberOfTries++; //user enters their guesses
if (guess1 == (-1)) {
break; //breaks the loop if the user enters -1
}
if(guess1 < correctNum){
System.out.println("The number inserted is too low!");
}
else if(guess1 > correctNum){
System.out.println("The number inserted is too high!");
}
else if(guess1 == correctNum){
System.out.println("The number you entered was Correct!!");
System.out.println("It took you " + NumberOfTries + " tries"); // Tells how many tries it took
}
}
}
}

I'm not entirely sure what you're asking, however, from what I can understand, you are looking to get your game to loop continuously until the user wants to stop playing. So what you are looking for is a method which gives the user a choice whether they want to play again. My suggesting is using boolean. The following code demonstrates this for your example:
import java.util.Random;
import java.util.Scanner;
public class Chapter3HighLow {
private static boolean playAgain(){
Scanner sc = new Scanner(System.in);
String usrInput = "";
System.out.println("Play again? (Y/N)");
usrInput = sc.next();
if(usrInput.equalsIgnoreCase("Y")){
return true;
}
else if(usrInput.equalsIgnoreCase("N")){
return false;
}
else{
return false;
}
}
public static void main (String[] args) {
Scanner input = new Scanner(System.in);
Random random = new Random(); //gives random numbers each time
int correctNum = random.nextInt(100);
int NumberOfTries = 0; // tells how many guesses it took
int guess1 = 0;
do{
do{
System.out.println("Please guess a number between 1-100!");
guess1 = input.nextInt();
NumberOfTries++; //user enters their guesses
if (guess1 == (-1)) {
break; //breaks the loop if the user enters -1
}
if(guess1 < correctNum){
System.out.println("The number inserted is too low!");
}
else if(guess1 > correctNum){
System.out.println("The number inserted is too high!");
}
else if(guess1 == correctNum){
System.out.println("The number you entered was Correct!!");
System.out.println("It took you " + NumberOfTries + " tries"); // Tells how many tries it took
}
}while(guess1 != correctNum);
correctNum = random.nextInt(100);
NumberOfTries = 0;
}while(playAgain() == true);
}
}
Read more about methods here.
Read more about the boolean data type here.

Your final else appears to be missing a break. Like
else if(guess1 == correctNum){
System.out.println("The number you entered was Correct!!");
System.out.println("It took you " + NumberOfTries + " tries");
break; // <-- add this.
}
or you might make that the while condition. Something like,
int guess1 = -1;
while (guess1 != correctNum) {
System.out.println("Hi! Please enter a number between 1-100! "
+ "(if you would like to quit, please press -1)");
guess1 = input.nextInt();
if (guess1 == (-1)) {
break;
}
NumberOfTries++;
if (guess1 < correctNum) {
System.out.println("The number inserted is too low!");
} else if (guess1 > correctNum) {
System.out.println("The number inserted is too high!");
} else if (guess1 == correctNum) {
System.out.println("The number you entered was Correct!!");
System.out.println("It took you " + NumberOfTries + " tries");
}
}

Does it really stop after guessing it right ?