40_CopyObjects

// if use car1= car2 will get same address, this method works for different address

<Main.java>
public class Main{
    public static void main(String[] args){
    Car car1 = new Car("Chevrolet","Camera",2021);
    //Car car2 = new Car("Ford","Mustang",2022);

    //car2.copy(car1);
    Car car2 = new Car(car1);

    System.out.println(car1);
    System.out.println(car2);
        System.out.println();
        System.out.println(car1.getMake());
        System.out.println(car1.getModel());
        System.out.println(car1.getYear());
        System.out.println();
        System.out.println(car2.getMake());
        System.out.println(car2.getModel());
        System.out.println(car2.getYear());
    }
}

public class Car{
    private String make;
    private String model;
    private int year;

    Car(String make, String model, int year){
        this.setMake(make);
        this.setModel(model);
        this.setYear(year);
    }
    Car(Car x){
        this.copy(x);
    }
    public String getMake(){
        return make;
    }
    public String getModel(){
        return model;
    }
    public int getYear(){
        return year;
    }

    public void setMake(String make){
        this.make=make;
    }
    public void setModel(String model){
        this.model = model;
    }
    public void setYear(int year){
        this.year=year;
    }

    public void copy(Car x){
        this.setMake(x.getMake());//this refer car 2 (object who called method)
        this.setModel(x.getModel());
        this.setYear(x.getYear());
    }
}

>>
Car@27d6c5e0
Car@4f3f5b24

Chevrolet
Camera
2021

Chevrolet
Camera
2021