Java Program to Print a Simple Number Pattern

Write a Java program to print a simple number pattern using for loop.

import java.util.Scanner;

public class SimpleNumber1 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Simple Number Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing Simple Number Pattern");
		
		for (int i = 1 ; i <= rows; i++ ) 
		{
			for (int j = 1 ; j <= i; j++ ) 	
			{
				System.out.print(j + " ");
			}
			System.out.println();
		}
	}
}
Java Program to Print a Simple Number Pattern

This example displays the numbers in the right triangle pattern using a while loop.

import java.util.Scanner;

public class SimpleNumber2 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		int i = 1, j ; 
		
		System.out.print("Enter Rows = ");
		int rows = sc.nextInt();
		
		
		while (i <= rows) 
		{
			j = 1 ;
			
			while ( j <= i) 	
			{
				System.out.print(j + " ");
				j++;
			}
			
			System.out.println();
			i++;
		}
	}
}
Enter Rows = 9
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 

This Python program helps to print a simple number pattern using a do while loop.

import java.util.Scanner;

public class SimpleNumber3 {
	
	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 i = 1, j ; 
		
		do
		{
			j = 1 ;
			
			do	
			{
				System.out.print(j + " ");

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

		} while (++i <= rows);
	}
}
Enter Rows = 14
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 9 10 
1 2 3 4 5 6 7 8 9 10 11 
1 2 3 4 5 6 7 8 9 10 11 12 
1 2 3 4 5 6 7 8 9 10 11 12 13 
1 2 3 4 5 6 7 8 9 10 11 12 13 14 

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.