Java Program to Print Right Pascals Triangle Alphabets Pattern

Write a Java program to print right pascals triangle alphabets pattern using for loop.

package Alphabets;

import java.util.Scanner;

public class RightPascalTriAlp1 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Right Pascal Triangle of Alphabets Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("The Right Pascal Triangle Alphabets Pattern");
		
		int i, j, alphabet = 65;
		
		for (i = 0; i <= rows - 1; i++) 
		{
			for (j = 0; j <= i; j++ ) 	
			{
				System.out.print((char)(alphabet + j) + " ");
			}
			System.out.println();
		}
		
		for (i = rows - 1; i >= 0; i--) 
		{
			for (j = 0; j < i; j++ ) 	
			{
				System.out.print((char)(alphabet + j) + " ");
			}
			System.out.println();
		}
	}
}

This Java program prints the right pascals triangle pattern of alphabets using while loop.

package Alphabets;

import java.util.Scanner;

public class RightPascalTriAlp2 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Right Pascal Triangle of Alphabets Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("The Right Pascal Triangle Alphabets Pattern");
		
		int i, j, alphabet = 65;
		i = 0;
		
		while( i <= rows - 1) 
		{
			j = 0;
			while(j <= i ) 	
			{
				System.out.print((char)(alphabet + j) + " ");
				j++;
			}
			System.out.println();
			i++;
		}
		
		i = rows - 1;
		while( i >= 0) 
		{
			j = 0;
			while(j < i) 	
			{
				System.out.print((char)(alphabet + j) + " ");
				j++;
			}
			System.out.println();
			i--;
		}
	}
}

Enter Right Pascal Triangle of Alphabets Rows = 13
The Right Pascal Triangle Alphabets Pattern
A 
A B 
A B C 
A B C D 
A B C D E 
A B C D E F 
A B C D E F G 
A B C D E F G H 
A B C D E F G H I 
A B C D E F G H I J 
A B C D E F G H I J K 
A B C D E F G H I J K L 
A B C D E F G H I J K L M 
A B C D E F G H I J K L 
A B C D E F G H I J K 
A B C D E F G H I J 
A B C D E F G H I 
A B C D E F G H 
A B C D E F G 
A B C D E F 
A B C D E 
A B C D 
A B C 
A B 
A 

This Java example uses the do while loop to display the right pascals triangle of alphabets pattern.

package Alphabets;

import java.util.Scanner;

public class RightPascalTriAlp3 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Right Pascal Triangle of Alphabets Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("The Right Pascal Triangle Alphabets Pattern");
		
		int i, j, alphabet = 65;
		i = 0;
		
		do 
		{
			j = 0;
			do 	
			{
				System.out.print((char)(alphabet + j) + " ");

			} while(++j <= i );
			
			System.out.println();

		} while(++i <= rows - 1);
		
		i = rows - 1;
		do
		{
			j = 0;
			do 	
			{
				System.out.print((char)(alphabet + j) + " ");

			} while(++j < i);
			System.out.println();

		} while(--i >= 0);
	}
}

Enter Right Pascal Triangle of Alphabets Rows = 15
The Right Pascal Triangle Alphabets Pattern
A 
A B 
A B C 
A B C D 
A B C D E 
A B C D E F 
A B C D E F G 
A B C D E F G H 
A B C D E F G H I 
A B C D E F G H I J 
A B C D E F G H I J K 
A B C D E F G H I J K L 
A B C D E F G H I J K L M 
A B C D E F G H I J K L M N 
A B C D E F G H I J K L M N O 
A B C D E F G H I J K L M N 
A B C D E F G H I J K L M 
A B C D E F G H I J K L 
A B C D E F G H I J K 
A B C D E F G H I J 
A B C D E F G H I 
A B C D E F G H 
A B C D E F G 
A B C D E F 
A B C D E 
A B C D 
A B C 
A B 
A 
A