Java Program to Print V Numbers Pattern

Write a Java program to print V numbers pattern using for loop.

package Shapes4;

import java.util.Scanner;

public class VNumber1 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter V Shape Number Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing the V Shape Number Pattern");
		
		for (int i = 1 ; i <= rows; i++ ) 
		{
			for (int j = 1 ; j <= i; j++ ) 
			{
				System.out.print(j);
			}
			for (int k = 1; k <= 2 * (rows - i); k++ ) 
			{
				System.out.print(" ");
			}
			for (int l = i; l >= 1; l-- ) 
			{
				System.out.print(l);
			}
			System.out.println();
		}
	}
}
Java Program to Print V Numbers Pattern

This Java program prints the alphabetical V pattern of numbers using a while loop.

package Shapes4;

import java.util.Scanner;

public class VNumber2 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter V Shape Number Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing the V Shape Number Pattern");
		int i, j, k, l;
		i = 1 ; 
		
		while (i <= rows ) 
		{
			j = 1 ; 
			while (j <= i ) 
			{
				System.out.print(j);
				j++;
			}
			k = 1; 
			while (k <= 2 * (rows - i)) 
			{
				System.out.print(" ");
				k++;
			}
			l = i; 
			while(l >= 1 ) 
			{
				System.out.print(l);
				 l--;
			}
			System.out.println();
			i++;
		}
	}
}
Enter V Shape Number Pattern Rows = 8
Printing the V Shape Number Pattern
1              1
12            21
123          321
1234        4321
12345      54321
123456    654321
1234567  7654321
1234567887654321

This Java example uses the do while loop to display the capital V pattern of numbers.

package Shapes4;

import java.util.Scanner;

public class VNumber3 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter V Shape Number Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing the V Shape Number Pattern");
		int i, j, k, l;
		
		i = 1 ;
		do 
		{
			j = 1 ;
			do
			{
				System.out.print(j);
				
			} while( ++j <= i );
			
			k = 1 ;
			while(k <= 2 * (rows - i))
			{
				System.out.print(" ");
				k++;
			}
			
			l = i; 
			do
			{
				System.out.print(l);

			} while(--l >= 1 );
			
			System.out.println();

		}while(++i <= rows);
	}
}
Enter V Shape Number Pattern Rows = 9
Printing the V Shape Number Pattern
1                1
12              21
123            321
1234          4321
12345        54321
123456      654321
1234567    7654321
12345678  87654321
123456789987654321

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.