Java Program to Print Right Triangle of 1 and 0

Write a Java program to print the right angled triangle of 1 and 0’s using for loop.

import java.util.Scanner;

public class RightTriangle10Num1 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Triangle of 1 and 0 Pattern Rows = ");
		int rows = sc.nextInt();
	
		System.out.println("Printing Right Triangle of 1 and 0 Numbers");
		
		for (int i = 1 ; i <= rows; i++ ) 
		{
			for (int j = 1 ; j <= i; j++ ) 	
			{
				if(j % 2 == 0) {
					System.out.print(0);
				}
				else {
					System.out.print(1);
				}
			}
			System.out.println();
		}
	}
}
Java Program to Print Right Triangle of 1 and 0 Numbers

This Java example displays the right angled triangle with alternative 1 and 0’s using a while loop.

import java.util.Scanner;

public class RightTriangle10Num2 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Triangle of 1 and 0 Pattern Rows = ");
		int rows = sc.nextInt();
	
		System.out.println("Printing Right Triangle of 1 and 0 Numbers");
		int i = 1, j; 
		
		while(i <= rows ) 
		{
			j = 1 ;
			while ( j <= i ) 	
			{
				if(j % 2 == 0) {
					System.out.print(0);
				}
				else {
					System.out.print(1);
				}
				j++;
			}
			System.out.println();
			 i++;
		}
	}
}
Enter Triangle of 1 and 0 Pattern Rows = 9
Printing Right Triangle of 1 and 0 Numbers
1
10
101
1010
10101
101010
1010101
10101010
101010101

Java program to print right triangle of 1 and 0 using do while loop.

import java.util.Scanner;

public class RightTriangle10Num3 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Triangle of 1 and 0 Pattern Rows = ");
		int rows = sc.nextInt();
	
		System.out.println("Printing Right Triangle of 1 and 0 Numbers");
		int i = 1, j; 
		
		do
		{
			j = 1 ;
			do	
			{
				if(j % 2 == 0) {
					System.out.print(0);
				}
				else {
					System.out.print(1);
				}

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

		} while(++i <= rows );
	}
}
Enter Triangle of 1 and 0 Pattern Rows = 14
Printing Right Triangle of 1 and 0 Numbers
1
10
101
1010
10101
101010
1010101
10101010
101010101
1010101010
10101010101
101010101010
1010101010101
10101010101010

About Suresh

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.