Java Program to Print W Star Pattern

Write a Java program to print W star pattern using for loop.

package Shapes3;

import java.util.Scanner;

public class WStarPattern1 {
	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter W Shape Star Pattern Rows = ");
		int rows = sc.nextInt();
			
		System.out.println("Printing W Shape Pattern");
		for(int i = 0; i < rows; i++)
		{
			printingStars(i + 1);
			printingSpaces(rows - i - 1);
			printingStars(rows - i + 1);
			printingSpaces(2 * i);
			printingStars(rows - i);
			printingSpaces(rows - i - 1);
			printingStars(i + 1);
			System.out.println();
		}
	}
	public static void printingStars(int rows) 
	{
		for (int i = 0; i < rows; ++i) 
		{
			System.out.print("*");
		}
	}
	public static void printingSpaces(int rows) 
	{
		for (int i = 0; i < rows; ++i ) 
		{
			System.out.print(" ");
		}
	}
}
Java Program to Print W Star Pattern

This Java example uses the while loop to print the alphabetical W star pattern.

package Shapes3;

import java.util.Scanner;

public class WStarPattern2 {
	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter W Shape Star Pattern Rows = ");
		int rows = sc.nextInt();
			
		System.out.println("Printing W Shape Pattern");
		int i = 0; 
		while(i < rows)
		{
			printingStars(i + 1);
			printingSpaces(rows - i - 1);
			printingStars(rows - i + 1);
			printingSpaces(2 * i);
			printingStars(rows - i);
			printingSpaces(rows - i - 1);
			printingStars(i + 1);
			System.out.println();
			i++;
		}
	}
	public static void printingStars(int rows) 
	{
		int i = 0; 
		while(i < rows) 
		{
			System.out.print("*");
			++i;
		}
	}
	public static void printingSpaces(int rows) 
	{
		int i = 0;
		while( i < rows ) 
		{
			System.out.print(" ");
			++i;
		}
	}
}
Enter W Shape Star Pattern Rows = 12
Printing W Shape Pattern
*           *************************           *
**          ************  ***********          **
***         ***********    **********         ***
****        **********      *********        ****
*****       *********        ********       *****
******      ********          *******      ******
*******     *******            ******     *******
********    ******              *****    ********
*********   *****                ****   *********
**********  ****                  ***  **********
*********** ***                    ** ***********
**************                      *************

In this Java program, printingStars function allows to enter any character and displays the W pattern of a given character.

package Shapes3;

import java.util.Scanner;

public class WStarPattern3 {
	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter Rows = ");
		int rows = sc.nextInt();
		
		System.out.print("Enter Character = ");
		char ch = sc.next().charAt(0);
			
		System.out.println("");
		for(int i = 0; i < rows; i++)
		{
			printingStars(i + 1, ch);
			printingSpaces(rows - i - 1);
			printingStars(rows - i + 1, ch);
			printingSpaces(2 * i);
			printingStars(rows - i, ch);
			printingSpaces(rows - i - 1);
			printingStars(i + 1, ch);
			System.out.println();
		}
	}
	public static void printingStars(int rows, char ch) 
	{
		for (int i = 0; i < rows; ++i) 
		{
			System.out.print(ch);
		}
	}
	public static void printingSpaces(int rows) 
	{
		for (int i = 0; i < rows; ++i ) 
		{
			System.out.print(" ");
		}
	}
}
Enter Rows = 16
Enter Character = $

$               $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$               $
$$              $$$$$$$$$$$$$$$$  $$$$$$$$$$$$$$$              $$
$$$             $$$$$$$$$$$$$$$    $$$$$$$$$$$$$$             $$$
$$$$            $$$$$$$$$$$$$$      $$$$$$$$$$$$$            $$$$
$$$$$           $$$$$$$$$$$$$        $$$$$$$$$$$$           $$$$$
$$$$$$          $$$$$$$$$$$$          $$$$$$$$$$$          $$$$$$
$$$$$$$         $$$$$$$$$$$            $$$$$$$$$$         $$$$$$$
$$$$$$$$        $$$$$$$$$$              $$$$$$$$$        $$$$$$$$
$$$$$$$$$       $$$$$$$$$                $$$$$$$$       $$$$$$$$$
$$$$$$$$$$      $$$$$$$$                  $$$$$$$      $$$$$$$$$$
$$$$$$$$$$$     $$$$$$$                    $$$$$$     $$$$$$$$$$$
$$$$$$$$$$$$    $$$$$$                      $$$$$    $$$$$$$$$$$$
$$$$$$$$$$$$$   $$$$$                        $$$$   $$$$$$$$$$$$$
$$$$$$$$$$$$$$  $$$$                          $$$  $$$$$$$$$$$$$$
$$$$$$$$$$$$$$$ $$$                            $$ $$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$                              $$$$$$$$$$$$$$$$$

About Suresh

Suresh is the founder of TutorialGateway and a freelance software developer. He specialized in Designing and Developing Windows and Web applications. The experience he gained in Programming and BI integration, and reporting tools translates into this blog. You can find him on Facebook or Twitter.