Java Program to Print Inverted Triangle Numbers Pattern

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

package Shapes3;

import java.util.Scanner;

public class InvertedTriangleNum1 {

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

This Java program prints the inverted triangle pattern of numbers using a while loop.

package Shapes3;

import java.util.Scanner;

public class InvertedTriangleNum2 {

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

This Java example displays the inverted triangle pattern of numbers using the do while loop.

package Shapes3;

import java.util.Scanner;

public class InvertedTriangleNum3 {

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

			} while(++k <= rows - i + 1);
			
			System.out.println();

		} while(++i <= rows ) ;
	}
}
Enter Inverted Triangle Number Pattern Rows = 9
Printing Inverted Triangle Number Pattern
 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 

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.