Java Program to Print Diamond Outline Star Pattern

Last Updated: 19 July, 2022

On this tutorial page, we are going to learn how to write a Java program to print the diamond outline star pattern.

A pattern program is composed of two or more loop statements and print statements.

Let's see the Java Program Implementation.

Program: Diamond Outline Star Pattern Program in Java

  public class DiamondOutlineStarPattern {
    public static void main(String[] args) {
      int row, column, numberOfRows = 5;
      
      for (row = 1; row <= numberOfRows; row++) {
        for (column = numberOfRows; column > row; column--) {
          System.out.print(" ");
        }
        for (column = 1; column <= (row * 2) - 1; column++) {
          if (column == 1 || column == (row * 2) - 1)
            System.out.print("*");
          else
            System.out.print(" ");
        }
        
        System.out.println();
      }
  
      for (row = numberOfRows - 1; row >= 1; row--) {
        for (column = numberOfRows - 1; column >= row; column--) {
          System.out.print(" ");
        }
        for (column = 1; column <= (row * 2) - 1; column++) {
          if (column == 1 || column == (row * 2) - 1)
            System.out.print("*");
          else
            System.out.print(" ");
        }
  
        System.out.println();
      }
    }
  }

Output

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

That's all guys, hope this Java Program is helpful for you.

Happy Learning... 😀

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