Table of Contents
In this post, we will see how to print Floyd’s triangle in java.
Problem
You need to print Floyd’s triangle as below for n=5.
Floyd’s triangle
****************
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
****************
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
Floyd’s triangle in java
Let’s create class "FloydTriangleMainExample.java" as below
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package org.arpit.java2blog; /* Program: It Prints Floyd's triangle based on user inputs * */ import java.util.Scanner; public class FloydTriangleMainExample { public static void main(String args[]) { int rows; int counter = 1; int currRowCount; //To get the user's input Scanner input = new Scanner(System.in); System.out.println("Enter the number of rows for floyd's triangle:"); rows = input.nextInt(); System.out.println("Floyd's triangle"); System.out.println("****************"); for ( currRowCount = 1 ; currRowCount <= rows ; currRowCount++ ) { for ( int j = 1 ; j <= currRowCount ; j++ ) { System.out.print(counter+" "); //Incrementing the number value to print counter++; } //For new line on row change System.out.println(); } input.close(); } } |
When you run above program, you will get below output:
Enter the number of rows for floyd’s triangle:
6
Floyd’s triangle
****************
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21
6
Floyd’s triangle
****************
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21
That’s all about printing floyd’s cycle in java.
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