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Konsep Class, Objek, Atribut dan PerintahThis




1. Sepeda.java

public class Sepeda {
    int gigi;
    String merk;
 
    //konstruktor
    public Sepeda(){
        this.gigi=0;
        this.merk="Federal";
    }
    public Sepeda(int g, String m){
        this.gigi = g;
        this.merk = m;
    } 
    public void setGigi(int g){
        this.gigi=g;
    }
    public void setMerk(String m){
        this.merk = m;     
    }
    public int getGigi(){
        return this.gigi;
    }
    public String getMerk(){
        return this.merk;
    } 
    public void berjalan(){
        System.out.println("Sepeda Berjalan");     
    }
    public void belokKiri(){
        System.out.println("Sepeda Belok Kiri");     
    }
    public void belokKanan(){
        System.out.println("Sepeda Belok Kanan");     
    }
}


2. Kendaraan.Java

public class Kendaraan {
    public static void main(String[] args) {
        Sepeda sepeda1 = new Sepeda();
     
        System.out.println("Gigi Sepeda 1 = "+sepeda1.getGigi());
        System.out.println("Merk Sepeda 1 = "+sepeda1.getMerk());
     
        System.out.println("Rubah Sepeda 1");
        sepeda1.setGigi(4);
        sepeda1.setMerk("Polygon");     
        System.out.println("Gigi Sepeda 1 = "+sepeda1.getGigi());
        System.out.println("Merk Sepeda 1 = "+sepeda1.getMerk());
     
        Sepeda sepeda2 = new Sepeda(6,"Monster");
        System.out.println("Gigi Sepeda 2 = "+sepeda2.getGigi());
        System.out.println("Merk Sepeda 2 = "+sepeda2.getMerk());
     
        System.out.println("Rubah Sepeda 2");
        sepeda2.setGigi(12);
        sepeda2.setMerk("Balap");     
        System.out.println("Gigi Sepeda 2 = "+sepeda2.getGigi());
        System.out.println("Merk Sepeda 2 = "+sepeda2.getMerk());
    }
}

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isinya 2 file : Sepeda.java dan Kendaraan.Java

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