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1 Answer
venkata sai

Following is a Java program which prints a pyramid of numbers.

Example

 Live Demo

public class PrintingPyramids {
   public static void main(String args[]){
      int n,i,j,k=1;
      n = 5;
      for(i = 0; i<= n; i++) {
         for(j = 0; j<= i; j++){
            System.out.print(k+" ");
            k++;
         }
         System.out.print("\n");
      }
   }
}

Output

1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21

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