dosen.java

package inheritance;
public class Dosen extends Pegawai {
    long gatun = 1000000;
    
    void hitungGatun(){
        System.out.print("Gaji Tunjangan : ");
        System.out.println(this.namaPegawai + " " + this.gatun);
    }
    
    void hitungGatot(){
        System.out.print("Gaji Total : ");
        System.out.println(this.namaPegawai + " " + (this.gapok+this.gatun));
    }
}

inherintance.java

package inheritance;
public class Inheritance {
    public static void main(String[] args) {
        Pegawai philip = new Pegawai();
        philip.namaPegawai = "Philip";
        philip.kodePegawai = "K3519066";
        philip.golPegawai = "A";
        
        philip.hitungGapok();
        
        Dosen purwoko = new Dosen();
        purwoko.namaPegawai = "Purwoko";
        purwoko.kodePegawai = "K3519100";
        purwoko.golPegawai = "B";
        
        purwoko.hitungGapok();
        purwoko.hitungGatun();
        purwoko.hitungGatot();
    }
    
}

pegawai.java

package inheritance;
public class Pegawai {
    String kodePegawai;
    String namaPegawai;
    String golPegawai;
    long gapok = 2000000;
    
    void hitungGapok(){
        System.out.print("Gaji Pokok : ");
        System.out.println(this.namaPegawai + " " + this.gapok);
    }
}