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javafor-loopnestednested-loopscounting

For Loop pattern from 654321,54321.. to 1

Using Java,

I am trying to use nested for loops to make a chart that prints out 654321 to 1,

Example,

654321

54321

4321

321

21

1

The following code prints out a close enough example but instead of decreasing from the front decrease from the back,

654321

65432

6543

654

65

6

It is sort of doing what I want put not exactly, how would you make it count down from the beginning?

public class test_for_loops{

   public static void main (String [] args){
      int lines = 6;
      for (int i = 1; i <= lines; i++){
       for (int j = lines; j >= i; j--){
         System.out.print (j + " ");
         }   
      System.out.println();
    }
   }
}
Solution

  • Try this : 

    int lines = 6;

for (int i = 1; i <= lines; i++){

    for (int j = lines - i + 1; j >= 1; j--){

        System.out.print (j + " ");
    }

    System.out.println();
}

    Output:

    6 5 4 3 2 1 
5 4 3 2 1 
4 3 2 1 
3 2 1 
2 1 
1