karyawan, Java - rextester

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//'main' method must be in a class 'Rextester'.
//openjdk version '11.0.5'

import java.util.*;
import java.lang.*;
//Auth : Praditya Lutvi Charisma
class Rextester{
    public static void main(String args[]){
        Karyawan karyawan1 = new Karyawan(1, "Anto", 8000000, "Asia", 1);
        Karyawan karyawan2 = new Karyawan(2, "Andi", 5000000, "Europe", 2);
        Karyawan karyawan3 = new Karyawan(3, "Budi", 11000000, "Asia", 1);
        Karyawan karyawan4 = new Karyawan(4, "Nita", 10000000, "North America", 3);
        Karyawan karyawan5 = new Karyawan(5, "Bagus", 2000000, "Europe", 2);
        
        List<Karyawan> listKaryawan = new ArrayList<>();
        listKaryawan.add(karyawan1);
        listKaryawan.add(karyawan2);
        listKaryawan.add(karyawan3);
        listKaryawan.add(karyawan4);
        listKaryawan.add(karyawan5);
        
        for(int i=0; i<listKaryawan.size(); i++){
            System.out.println("ID : " +listKaryawan.get(i).getId()+ "\tNama : "+listKaryawan.get(i).getNama()+"\tGaji Akhir: "+listKaryawan.get(i).getGajiAkhir());
        }
    }
}

class Karyawan {
    int id, gaji, level;
    String nama, region;

public Karyawan(int id, String nama, int gaji, String region, int level) {
        this.id = id;
        this.gaji = gaji;
        this.level = level;
        this.nama = nama;
        this.region = region;
    }

public int getId() {
        return id;
    }

public void setId(int id) {
        this.id = id;
    }

public int getGaji() {
        return gaji;
    }

public void setGaji(int gaji) {
        this.gaji = gaji;
    }

public int getLevel() {
        return level;
    }

public void setLevel(int level) {
        this.level = level;
    }

public String getNama() {
        return nama;
    }

public void setNama(String nama) {
        this.nama = nama;
    }

public String getRegion() {
        return region;
    }

public void setRegion(String region) {
        this.region = region;
    }
    
    public int getGajiAkhir(){
        int gajiAkhir = 0;
        
        if(gaji >= 7000000){
            gajiAkhir = (int) ((1.1)*gaji);
        } else if (gaji > 4000000 && gaji< 7000000){
            gajiAkhir = (int) ((1.2)*gaji);
        } else if(gaji < 4000000){
            gajiAkhir = (int) ((1.4)*gaji);
        }
        
        switch(level){
            case 1:
                gajiAkhir += 200000;
                break;
            case 2:
                gajiAkhir += 500000;
                break;
            case 3:
                gajiAkhir += 1000000;
                break;
            default:
                break;
        }
        
        if(region == "Asia"){
            gajiAkhir = (int) (0.98 * gajiAkhir);
        }else if(region == "Europe"){
            gajiAkhir = (int) (0.975 * gajiAkhir);
        }else if(region == "North America"){
            gajiAkhir = (int) (0.97 * gajiAkhir);
        }
        return gajiAkhir;
    }
}

[ + ] Show input
Compilation time: 1.74 sec, absolute running time: 0.39 sec, cpu time: 0.36 sec, memory peak: 30 Mb, absolute service time: 2,3 sec