Java program to Print Floyd Triangle

Write a program to print Floyd triangle in Java :

A Floyd triangle is a right angle triangle that is created by using increasing numbers. For example , following is a
Floyd triangle of height 6 :

1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21

In this example, we will learn how to print a Floyd triangle in Java.

Steps to print Floyd triangle :


1. Take the height from user
2. Run a loop : that will run from 1 to the height
3. Inside the loop, run one more loop . That will run same time as the outer loop’s count. That means , if the outer
loop is on step 1, inner loop will run 1 time. Outer loop is on step 2, inner loop will run 2 times.
4. Save one variable with initial value 1. Print this value on each iteration of the inner loop.
5. After the inner loop complets, print a new line .

Program :

/*
 * Copyright (C) 2017 codevscolor
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


import java.util.ArrayList;
import java.util.Scanner;

/**
 * Example Class
 */
public class ExampleClass {

    /**
     * System.out.println utility method
     *
     * @param value : value to print
     */
    static void print(String value) {
        System.out.print(value);
    }


    /**
     * main method for this class
     */
    public static void main(String[] args) {

        int height;

        Scanner scanner = new Scanner(System.in);

        print("Enter Height for the triangle : ");

        height = scanner.nextInt();

        //count will increase each time and we will print it
        int count = 1;

        for (int i = 1; i <= height; i++) {
            for (int j = 1; j <= i; j++) {
                print(count + " ");
                count ++;
            }
            System.out.println();
        }

    }
}

Sample Output :

Enter Height for the triangle : 5
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
Sitewide-USD 336x280

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