Java Program to Print Alphabet K Pattern

In this Java pattern program, we show the steps to print the stars in an Alphabet K 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();

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

Enter Rows = 15
*       *
*      * 
*     *  
*    *   
*   *    
*  *     
* *      
**       
* *      
*  *     
*   *    
*    *   
*     *  
*      * 
*       *

Within this Alphabet K 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, n;
		
		System.out.print("Enter Rows = ");
		rows = sc.nextInt();

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

Enter Rows = 18
*         *
*        * 
*       *  
*      *   
*     *    
*    *     
*   *      
*  *       
* *        
**         
* *        
*  *       
*   *      
*    *     
*     *    
*      *   
*       *  
*        * 

In this program, we created an AlphabetKShape function to print the Alphabet L 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);

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