Not sure what this particular for loop is doing

[Palindrome5]

I do not understand lines 18-21 of the following code. How is j changing value in the for loop that involves k? The only way I could see that happening is if the k loop were nested in the j loop, which it clearly isn't.

import java.text.*;
import java.util.*;

public class HelloWorld
 {
 public static void main(String[] args)
 {

	//loop iterator
	 int i,j,k;
	 //output the upper triangle, line by line, space first, and then "*"
	 for (i=1;i<=3;i++)
	 {
		 for (j=0;j<3-i;j++)
		 {
			 //System.out.print(' ');
		 }
		 for (k=1;k<=5-2*j;k++)
		 {
			 //System.out.print('*');
		 }
		 System.out.print('\n');
	 }
 
	//output the lower triangle, line by line, space first, and then "*"
	//***
	// *
	for (i=1;i<=2;i++)
	{
		for (j=1;j<=i;j++)
		{
			System.out.print(' ');
		}
		for (j=1;j<=5-2*i;j++)
		{
			System.out.print('*');
		}
		System.out.print('\n');
	}
	 
 }
 }

[JBelg]

The j in the for loop mentioned is not a local to the for loop, it's declared outside of it, so every time the j changes, its value is stored outside of it and it can be used in other loops.

I hope you understand and if I only raised more questions feel free to ask them.

[Palindrome5]

On the contrary, that explains it beautifully. Thank you!