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I need help with a while(1) loop that contains a continue and break statement. It must count from numbers 1 to 20 and for every even number, it must output the values. I have to use a continue after my writeToPage statement and use a break statement when it reaches 20.
This is what I tested out but the file will not even load:
writeToPage("Program 4: Continue and Break");
writeToPage("");
while(1) {
if (i % 2 == 0){
writeToPage(+ i);
continue;
}
if (i >= 20){
break;
}
}
I'm not sure if I'm putting them in the wrong place.
For infinite loop, you need to write while(true) instead of while(1).
If i % 2 != 0 is true, simply increment i by 1 and continue; otherwise, print the value of i and increment i by 1.
Demo:
public class Main {
public static void main(String[] args) {
int i = 1;
while (true) {
if (i % 2 != 0) {
i++;
continue;
} else {
writeToPage(i);
i++;
}
if (i >= 20) {
break;
}
}
}
static void writeToPage(int i) {
System.out.println(i);
}
}
Output:
2
4
6
8
10
12
14
16
18
20
Related
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Loop
how to loop this without using array? I'm clearly confuse in this in java module I don't know the solution ;-; I'm new to java pls helppp mee
Try this.
for (int i = 5; i <= 25; i += 5)
System.out.println(i / 2);
Or
for (int i = 1; i <= 5; i++)
System.out.println(i * 5 / 2);
output:
2
5
7
10
12
Think for yourself why this produces the correct result.
public class Main {
public static void main(String[] args) {
int outputNum = 0;
for(int i = 0; i < 5; i++){
if (i % 2 == 0){
outputNum += 2;
}
else {
outputNum += 3;
}
System.out.print(outputNum + (i == 4 ? "" : " "));
}
}
}
This does exactly what you need.
Explanation:
In the loop if the i variable is even we add 2 to the output number (since you need to add 2 then 3 then 2...) and if i is uneven then we add three. At the end of the for loop we print the number without the newline using System.out.print and we separate them by a space if we aren't printing the last number using a ternary operator (i == 4 ? "" : " ") which returns a space if i is not equal to 4 and an empty string if it is, we do this to avoid having a space on the end of our output, so we get this 2 5 7 10 12 instead of this 2 5 7 10 12
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Hello, this is my code. I need to print number 1 to 10.000. But every number with 200 to 399 need to be hide. Exemple : 1269, 1325, 1234...
public static void main(String[] args) {
int nombre = 0;
while (nombre < 10000) {
nombre++;
if (nombre%200 == 0 || nombre - nombre%399 == 0) {
System.out.println("Le nombre est entre 100 - 300");
}
else if (nombre % 3 ==0) {
System.out.println("Le nombre est divisible par 3 ");
}
else
{
System.out.println(nombre);
}
}
}
}````
// Thanks for the help !`
You can use modulus to find the last 3 digits and then check that with your condition.
public printNum() {
int num = 0;
while (num < 10000) {
num++;
int last3Digits = num % 1000;
if (!(last3Digits >= 200 || last3Digits <= 399)){
System.out.println(num);
}
}
}
Hope this solves it
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Task
Given an integer, n, perform the following conditional actions:
If n is odd, print Weird
If n is even and in the inclusive range of 2 to 5 , print Not Weird
If n is even and in the inclusive range of 6 to 20, print Weird
If n is even and greater than 20, print Not Weird
I have written a code but it is showing error in printing 18 and 20.
public static void main(String[] args) {
int N = scanner.nextInt();
scanner.close();
if(N%2 != 0){
System.out.println("Weird");
}
else if(N%2 ==0 && N>=2||N<=5)
{
System.out.println("Not Weird");
}
else if(N%2 ==0 && N>=6||N<=20)
{
System.out.println("Weird");
}
else if(N%2 ==0 && N>20)
{
System.out.println("Not Weird");
}
}
}
You need to change your or condition || to and condition && to check for the range like
else if(N%2 == 0 && N >= 2 && N <= 5)
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If I am not mistaken, this bit of code should print out all even numbers smaller than or equal to 100. When I run this code, nothing happens. No error message or anything. I'm using Eclipse.
public class Even {
public static void main(String args[]) {
int number = 1;
int remainder = number % 2;
while(number <= 100) {
number++;
if(remainder == 0) {
System.out.println(number);
}
}
}
}
As others stated before, value of remainder is set only once. However, you check it a hundred times expecting it to tell you something else every time. I'd suggest putting it inside a loop, so you get a "fresh" value for every number.
public class Even {
public static void main(String args[]) {
int number = 1;
int remainder;
while(number <= 100) {
number++;
remainder = number % 2;
if(remainder == 0) {
System.out.println(number);
}
}
}
}
The reminder doesn't change as the assignment is prior to while loop. The statement int remainder = number % 2; has to be inside while loop to see the expected result.
for(int i = 0;i<=100; i= i+2)
System.out.println(i);
You do not need remainder :)
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**if argument multiply 3 print "JU"
if argument multiply 5 print "MP"
if argument multiply 3 and 5 print "JUMP"**
ex :
> java myclass 16
OUTPUT:
1
2
JU
4
MP
JU
7
8
JU
MP
11
JU
13
14
JUMP
16
// for each number in the sequence 1..N execute the following
for (int i = 1; i <= N; ++i) {
// print JU if divides by 3
if (i % 3 == 0) {
System.out.print("JU");
}
// print MP if divides by 5
if (i % 5 == 0) {
System.out.print("MP");
}
// note that if it divides by 3 and by 5 (by 15 actually)
// it print JU and MP in a row and it becomes JUMP
// if not dividable - print it itself
if (i % 3 != 0 && i % 5 != 0) {
System.out.print(i);
}
System.out.println();
}
This a variant of FizzBuzz and is a common challenge given to new programmers or in interviews. Why not have a look at the Rosetta Code's Java section on FizzBuzz to see a whole range of ways to do it. You'll obviously need to change Fizz for 'JU' and Buzz for 'MP'.
Try this
public static void getNumber(int upperLimit){
boolean status=true;
int i=1;
while (status) {
if(i%3==0){
System.out.println("JU");
}else if(i%5==0){
System.out.println("MP");
}else if(i%5==0&&i%3==0){
System.out.println("JUMP");
}else {
System.out.println(i);
}
if(i==upperLimit){
status=false;
}
i++;
}
}