Java Program to Print Alphabet V Pattern

In this Java pattern program, we show the steps to print the stars in an Alphabet V shape or pattern using for loop, while loop, and functions.

import java.util.Scanner;

public class Example 
{
	private static Scanner sc;
	
	public static void main(String[] args) 
	{
		sc = new Scanner(System.in);
		
		System.out.print("Enter Rows = ");
		int rows = sc.nextInt();

		for (int i = 0; i < rows; i++) 
		{
			for (int j = 0; j < 2 * rows; j++) 
			{
				if ((i + j == 2 * rows - 2 || i == j) && (i < 2 * rows / 2))
				{
					System.out.printf("*");
				} 
				else 
				{
					System.out.printf(" ");
				}
			}
			System.out.println();
		}
	}
}

Enter Rows = 14
*                         * 
 *                       *  
  *                     *   
   *                   *    
    *                 *     
     *               *      
      *             *       
       *           *        
        *         *         
         *       *          
          *     *           
           *   *            
            * *             
             *              

Within this Alphabet V shape or Pattern program, we replaced the for loop with a while loop to print the stars at each position. For more Alphabet Patterns and star pattern programs, please use the hyperlinks.

import java.util.Scanner;

public class Example 
{
	private static Scanner sc;
	
	public static void main(String[] args) 
	{
		sc = new Scanner(System.in);
		int rows, i, j;
		
		System.out.print("Enter Rows = ");
		rows = sc.nextInt();

	    i = 0 ;
		while ( i < rows )
		{
			j = 0;
			while ( j < 2 * rows) 
			{
				if ((i + j == 2 * rows - 2 || i == j) && (i < 2 * rows / 2))
				{
					System.out.printf("*");
				} 
				else 
				{
					System.out.printf(" ");
				}
				j++;
			}
			System.out.println();
			i++;
		}
	}
}

Enter Rows = 17
*                               * 
 *                             *  
  *                           *   
   *                         *    
    *                       *     
     *                     *      
      *                   *       
       *                 *        
        *               *         
         *             *          
          *           *           
           *         *            
            *       *             
             *     *              
              *   *               
               * *                
                *                 

In this program, we created an AlphabetVShape function to print the Alphabet V Pattern or shape filled with stars on rows and columns.

import java.util.Scanner;

public class Example 
{
	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 a = sc.next().charAt(0);

		AlphabetVShape(rows, a);
	}
	
	public static void AlphabetVShape(int rows, char a) 
	{
		for (int i = 0; i < rows; i++) 
		{
			for (int j = 0; j < 2 * rows; j++) 
			{
				if (((i + j == 2 * rows - 2 || i == j) && (i < 2 * rows / 2))) 
				{
					System.out.printf("%c", a);
				} 
				else 
				{
					System.out.printf(" ");
				}
			}
			System.out.println();
		}
	}
}