I need help to complete the tasks:

Question

Do While Loops

Write a program that takes N numbers as input and outputs the numbers from N to 0, skipping the ones that are multiple of 3.

Sample Input
7

Sample Output
7
5
4
2
1
0

My code:

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner read = new Scanner(System.in);
int number = read.nextInt(); // N

while(number > 0) {
if (number == 3){
continue;
}
System.out.println(number);

number = number - 1;

}
System.out.println("0");

}
}

I can manage a series of numbers that is getting smaller and smaller, but not omitting the 3 and so on. What can I do?

Answer 1

You have written the wrong condition to check multiple of 3

Your code checks if the number is equal to 3 then skip it.

Change the condition

If(number%3==0)
{
continue;
}

Answer 2

Lisa Kraack ,

i have my doubts if you have tested the code that you have posted here - right?

if the loop gets the first number that is divisible by 3, the continue statement will be executed, and then start with the next loop cycle. but as number is decremented below the continue statement, it will run in an infinite loop there.

Answer 3

Would this be the right code?

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner read = new Scanner(System.in);
int number = read.nextInt(); // N

while(number > 0) {
if(number%3==0)
{
continue;
}

System.out.println(number);

number = number - 1;

}
System.out.println("0");

}
}