Java Program to Print Repeated Character Pattern

Write a Java program to print repeated character pattern or alphabets in each row pattern using for loop.

package Alphabets;

import java.util.Scanner;

public class RepeatedCharPat1 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Repeated Character Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing Repeated Character/Alphabets Pattern");
		int alphabet = 65;
		
		for (int i = 0 ; i < rows; i++ ) 
		{
			for (int j = 0 ; j <= i; j++ ) 	
			{
				System.out.print((char)alphabet + " ");
			}
			alphabet++;
			System.out.println();
		}
	}
}

This example program displays the right triangle pattern of repeated characters in each row using a while loop.

package Alphabets;

import java.util.Scanner;

public class RepeatedCharPat2 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Repeated Character Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing Repeated Character/Alphabets Pattern");
		int i = 0, j, alphabet = 65;
		
		while(i < rows ) 
		{
			j = 0 ;
			while( j <= i ) 	
			{
				System.out.print((char)alphabet + " ");
				j++;
			}
			alphabet++;
			System.out.println();
			i++;
		}
	}
}

Enter Repeated Character Pattern Rows = 8
Printing Repeated Character/Alphabets Pattern
A 
B B 
C C C 
D D D D 
E E E E E 
F F F F F F 
G G G G G G G 
H H H H H H H H 

The below shown program will print the repeated characters or alphabets pattern using do while loop.

package Alphabets;

import java.util.Scanner;

public class RepeatedCharPat3 {

	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.println("Printing Repeated Character/Alphabets Pattern");
		int i = 0, j, alphabet = 65;
		
		do 
		{
			j = 0 ;
			do	
			{
				System.out.print((char)alphabet + " ");

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

		} while(++i < rows );
	}
}

Enter Rows = 12
Printing Repeated Character/Alphabets Pattern
A 
B B 
C C C 
D D D D 
E E E E E 
F F F F F F 
G G G G G G G 
H H H H H H H H 
I I I I I I I I I 
J J J J J J J J J J 
K K K K K K K K K K K 
L L L L L L L L L L L L