Java Program to Print Right Pascals Number Triangle

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

import java.util.Scanner;

public class RightPascalNumber1 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		int i, j;
		
		System.out.print("Enter Right Pascals Number Triangle Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing Right Pascals Triangle Number Pattern");
		
		for (i = 1 ; i <= rows; i++ ) 
		{
			for (j = 1 ; j <= i; j++ ) 
			{
				System.out.print(j + " ");
			}
			System.out.println();
		}
		
		for (i = rows - 1; i >= 1; i-- ) 
		{
			for (j = 1 ; j <= i; j++ ) 
			{
				System.out.print(j + " ");
			}
			System.out.println();
		}
	}
}
Java Program to Print Right Pascals Number Triangle

This Java example displays the right pascals triangle of numbers using a while loop.

import java.util.Scanner;

public class RightPascalNumber2 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter Right Pascals Number Triangle Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing Right Pascals Triangle Number Pattern");
		int i = 1, j;
		
		while (i <= rows ) 
		{
			j = 1 ;
			while (j <= i ) 
			{
				System.out.print(j + " ");
				j++;
			}
			
			System.out.println();
			i++;
		}
		
		i = rows - 1; 
		while (i >= 1 ) 
		{
			j = 1 ;
			while( j <= i ) 
			{
				System.out.print(j + " ");
				j++;
			}
			System.out.println();
			 i--;
		}
	}
}
Enter Right Pascals Number Triangle Pattern Rows = 7
Printing Right Pascals Triangle Number Pattern
1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5 
1 2 3 4 5 6 
1 2 3 4 5 6 7 
1 2 3 4 5 6 
1 2 3 4 5 
1 2 3 4 
1 2 3 
1 2 
1 

Java program to print right pascals number triangle using do while loop.

import java.util.Scanner;

public class RightPascalNumber3 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter Right Pascals Number Triangle Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing Right Pascals Triangle Number Pattern");
		int i = 1, j;
		
		do
		{
			j = 1 ;
			do
			{
				System.out.print(j + " ");

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

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

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

		} while (--i >= 1 );
	}
}
Enter Right Pascals Number Triangle Pattern Rows = 9
Printing Right Pascals Triangle Number Pattern
1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5 
1 2 3 4 5 6 
1 2 3 4 5 6 7 
1 2 3 4 5 6 7 8 
1 2 3 4 5 6 7 8 9 
1 2 3 4 5 6 7 8 
1 2 3 4 5 6 7 
1 2 3 4 5 6 
1 2 3 4 5 
1 2 3 4 
1 2 3 
1 2 
1 

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Suresh is the founder of TutorialGateway and a freelance software developer. He specialized in Designing and Developing Windows and Web applications. The experience he gained in Programming and BI integration, and reporting tools translates into this blog. You can find him on Facebook or Twitter.