Java Program to Print Sandglass Character Pattern

Last Updated: 09 August, 2022

On this tutorial page, we are going to learn how to write a Java program to print the sandglass character pattern.

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

Let's see the Java Character Pattern Program Implementation.

Program: Sandglass Character Pattern Program in Java

  public class Pattern21 {
    public static void main(String[] args) {
  
      int row, column, alphabet, numberOfRows = 5;
  
      // first, printing pyramid
      // outer loop for number of rows
      for (row = 0; row <= numberOfRows - 1; row++) {
        alphabet = 65;
        // inner loop for number of columns to print spaces
        for (column = 0; column < row; column++) {
          System.out.print(" ");
        }
        // inner loop for number of columns to print characters
        for (column = row; column <= numberOfRows - 1; column++) {
          System.out.print((char) (alphabet + column) + " ");
        }
        // line break
        System.out.println();
      }
  
      // second, printing pyramid
      // outer loop for number of rows
      for (row = numberOfRows - 1; row >= 0; row--) {
        alphabet = 65;
        // inner loop for number of columns to print spaces
        for (column = 0; column < row; column++) {
          System.out.print(" ");
        }
        // inner loop for number of columns to print characters
        for (column = row; column <= numberOfRows - 1; column++) {
          System.out.print((char) (alphabet + column) + " ");
        }
        // line break
        System.out.println();
      }
    }
  }