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(" ");
		}
	}
}

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 = $

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