Top pyramid programs in Java

1. Half Pyramid

public class HalfPyramid {
  public static void main(String[] args) {
    int rows = 5;

    for (int i = 1; i <= rows; i++) {
      for (int j = 1; j <= i; j++) {
        System.out.print("* ");
      }
      System.out.println();
    }
  }
}

Output :

* 
* * 
* * * 
* * * * 
* * * * *