Java Program to Print Pyramid Numbers Pattern

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

package Shapes3;

import java.util.Scanner;

public class PyramidNum1 {

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

This program prints the pyramid pattern of numbers using a while loop.

package Shapes3;

import java.util.Scanner;

public class PyramidNum2 {

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

This Java example program displays the pyramid pattern of numbers using the do while loop.

package Shapes3;

import java.util.Scanner;

public class PyramidNum3 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("====");
		int j, k, i = 1; 
		
		do
		{
			j = rows;
			do 
			{
				System.out.print(" ");

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

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

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

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.