Thread: Creating number Pyramids with For Loops

So, I just had a random urge (after reading a previous post) to make an infinite loop that creates this output:

1
12
123
1234
12345
1234
123
12
1
12
123
.... etc.

So far I have this:

import java.util.Scanner;
 
public class ForTriangle {
	public static void main(String args[]){
 
		Scanner scan = new Scanner(System.in);
		System.out.println("Enter length of numbers");
		int number = scan.nextInt();
 
		int a = 1;
		int b = 1;
 
	while(b < number){
		for(a = 1; a <= number; a++){
			for(b = 1; b <= a; b++){
				if(b == number)
					a = 0;
				System.out.print(b);
			}
			System.out.println();
		}
 
	}
 
	}//End MM
}//End MC

When the user enters 5, it produces:

1
12
123
1234
12345
1
12
123
1234
12345
etc...

Any tips?

If I try to do this, the first for loop will run on forever, and ever.. And the second for loop will never be used because the first for loop never ended. I already seemed to have lost interest in this.. Thanks for replying so quickly though Sean!