Java : Progam pengajian berdasarkan jam kerja

/*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */

package penggajian;

import java.util.Scanner;

/**

 *

 * @author Planet Setup

 */

public class Main {

    /**

     * @param args the command line arguments

     */

    public static void main(String[] args) {

        Scanner input = new Scanner (System.in);

        double total = 0,jmlpot = 0,jam,gaji = 0,gn = 0;

        String ket = null;

        System.out.println("gaji karyawan");

        System.out.print("jam kerja perminggu  :");

        jam=input.nextDouble();

      

        if(jam >= 50 && jam <= 60)

        {

            total = jam * 5000;

        gn=5000*jam;}

        else if(jam >= 60){

            gaji=jam-60;

        jmlpot=gaji*7500;

        total=jam*5000+jmlpot;

        gn=5000*jam;}

        else if(jam<=50){

            gaji=50-jam;

            jmlpot=gaji*2500;

                total=gn-jmlpot;

        gn=5000*jam;}

 System.out.println("jam potongan:"+gaji);

          System.out.println("jumlah potongan:"+jmlpot);

          System.out.println("gaji normal:"+gn);

         System.out.println("total gaji:"+total);

        // TODO code application logic here

    }

}