Berechnung einer Quadratzahl

Calculator.java

import java.util.Scanner;

public class Calculator {
    public static void main(String... args) {
        Scanner input = new Scanner(System.in);
        System.out.print("Input number: ");
        int n = input.nextInt();
        System.out.println("The square of " + n + " is " + square(n));
    }

    static int square(int number) {
        return number * number;
    }
}