Java: Check a number is a cube or not

Java Numbers: Exercise-18 with Solution

Write a Java program to check if a number is a cube or not.

In arithmetic and algebra, the cube of a number n is its third power: the result of the number multiplied by itself twice:
n³ = n × n × n
Input Data:
Input a number: 8

Pictorial Presentation:

Sample Solution:

Java Code:

import java.util.Scanner;
public class Example18 {

      public static void main( String args[] ){ 
        Scanner sc = new Scanner( System.in ); 
        System.out.print("Input a number: "); 
        int num = sc.nextInt(); 
       int n = (int) Math.round(Math.pow(num, 1.0/3.0));
        if((num == n * n * n))
			{
			   System.out.print("Number is a cube.");
            }
		   else
			{
				System.out.print("Number is not a cube.");
			}
				System.out.println("\n");
        }
     }

Sample Output:

Input a number: 8                                                                                             
Number is a cube.

Flowchart:

Java Code Editor:

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