Triangle in Java Do While

DoWhile.java

public class DoWhile {
  
  public static void doWhileLoop1() {
    int columnCounter = 5;
    
    do {
      int rowCounter = 1;
      int space = 5 - columnCounter;

      do {
        System.out.print(" ");
        space--;
      } while (space > 0);
      
      do {
        System.out.print("*");
        rowCounter++;
      } while (rowCounter <= columnCounter);
      
      System.out.println();
      
      columnCounter--;
    } while (columnCounter >= 1);
  }
  
  public static void doWhileLoop2() {
    int columnCounter = 1;
    
    do {
      int rowCounter = 1;
      
      do {
        System.out.print("*");
        rowCounter++;
      } while (rowCounter <= columnCounter);
      
      System.out.println();
      
      columnCounter++;
    } while (columnCounter <= 5);
  }
  
  public static void doWhileLoop3() {
    int columnCounter = 1;
    
    do {
      int rowCounter = 5;
      
      do {
        System.out.print("*");
        rowCounter--;
      } while (rowCounter >= columnCounter);
      
      System.out.println();
      
      columnCounter++;
    } while (columnCounter <= 5);
  }
  
  public static void doWhileLoop4() {
    int columnCounter = 1;
    
    do {
      int rowCounter = 1;
      int space = 5 - columnCounter;
      
      do {
        System.out.print(" ");
        space--;
      } while (space > 0);
      
      do {
        System.out.print("*");
        rowCounter++;
      } while (rowCounter <= columnCounter);
      
      System.out.println();
      
      columnCounter++;
    
    } while (columnCounter <= 5);
  }
  
  public static void main(String[] args) {
    doWhileLoop1();
    System.out.println();
    doWhileLoop2();
    System.out.println();
    doWhileLoop3();
    System.out.println();
    doWhileLoop4();
  }

}