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Java Program to print Floyd’s triangle.

In this tutorial, we will learn to create a Java Program to print Floyd’s triangle using Java programming.

Prerequisites:-

Before starting with this tutorial we assume that you are best aware of the following Java programming topics:

Operators in Java Programming.
Basic Input and Output function in Java Programming.
Basic Java programming.
For loop in Java Programming.

Floyd’s Triangle:-

Floyd’s triangle is a right-angled triangle that contains mathematical numbers from 1 and goes up to the required point.

Printing a Floyd’s:-

The Java language is a very powerful programming language. In Java programming, we can perform many operations with the help of coding’s. Java is a very easy language to create any shape. In this program, we will learn to create Floyd’s triangle with the help of some code.

Algorithm:-

STEP 1: START the program

STEP 2: first declare the variables

STEP 3: then start the parent for loop

STEP 4: now make the child for loop

STEP 5: now use child loop to start drawing the Floyd's

STEP 6: Now this for loop will also execute under the parent for loop

STEP 7: Print "\n" for changing the line before the increment of the main loop

STEP 8: increment of the main for loop

STEP 9: return the zero value for main function

STEP 1: START the program

STEP 2: first declare the variables

STEP 3: then start the parent for loop

STEP 4: now make the child for loop

STEP 5: now use child loop to start drawing the Floyd's

STEP 6: Now this for loop will also execute under the parent for loop

STEP 7: Print "\n" for changing the line before the increment of the main loop

STEP 8: increment of the main for loop

STEP 9: return the zero value for main function

Program:-

To print a Floyd’s Triangle

// Java program to display Floyd's triangle

// Importing Java libraries
import java.util.*;

// Main class
class FlyTri {

	// Main driver method
	public static void main(String[] args)	{
	    // Declaring the variables for the program.
	    int no,i,j,k;
		// No of rows to be printed
		no = 5;

		// Creating and initializing variable for
		// rows, columns and display value
		int i, j, k = 1;

		// Nested iterating for 2D matrix
		// Outer loop for rows
		for (i = 1; i <= no; i++) {

			// Inner loop for columns
			for (j = 1; j <= i; j++) {

				// Printing value to be displayed
				System.out.print(k + " ");

				// Incremeting value displayed
				k++;
			}

			// Print elements of next row
			System.out.println();
		}
	}
}

// Java program to display Floyd's triangle

// Importing Java libraries

import java.util.*;

// Main class

class FlyTri {

// Main driver method

public static void main(String[] args) {

// Declaring the variables for the program.

int no,i,j,k;

// No of rows to be printed

no = 5;

// Creating and initializing variable for

// rows, columns and display value

int i, j, k = 1;

// Nested iterating for 2D matrix

// Outer loop for rows

for (i = 1; i <= no; i++) {

// Inner loop for columns

for (j = 1; j <= i; j++) {

// Printing value to be displayed

System.out.print(k + " ");

// Incremeting value displayed

k++;

}

// Print elements of next row

System.out.println();

}

Output:-

In the above program, we have first initialized the required variable.

i = it will hold the integer value to control parent for loop.
j = it will hold the integer value to control child for loop.
k = it will hold the integer value to control child for loop.
no = it will hold the integer value for the number of rows.

Taking input Number of rows

Nested For loop the body of the program

Printing Numbers

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