TUGASALGORITMA PERSEGI

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package Igarah;

import java.util.Scanner;

/**
 *
 * @author ASUS
 */
public class luas_bujursangkar {

    public static void main(String[] args) {
        int s ;
        int h ;
        int k ;
        System.out.println("\n Masukkan sisi = ");
        Scanner input = new Scanner (System.in);
        s = input.nextInt() ;

        h = s * s ;
        System.out.println("Luas ="+h);

        k = 4 * s ;
        System.out.println("Keliling ="+k);

    }

}