JAVA面向对象四大金刚之闭门造车

public class Car {
    
    private String name;
    FDJ fdj;
    WK wk;
        
    public Car(FDJ fdj, WK wk) {
        this.fdj = fdj;
        this.wk = wk;
    }
}

class FDJ{
    String name;
    String ml;
    
    
    public FDJ(String name,String ml) {
        this.name = name;
        this.ml = ml;    
    }
    
    public void show() {
        System.out.println("发动机马力要大...");
    }
}

class WK{
    String color;
    String type;
    
    public WK(String color,String type) {
        this.color = color;
        this.type = type;    
    }
    
    public void show() {
        System.out.println("车型宝马X6系列，颜色自定义...");
    }
}

 

流水线生产.................

public class TestCar {
    public static void main(String[] args) {
        //先造发动机对象
        FDJ fdj = new FDJ("宝马X系发动机","500匹马力");
        //再造外壳对象
        WK wk = new WK("黑色","宝马X6车型外壳");
        //组装汽车
        Car car = new Car(fdj,wk);
        car.fdj.show();
        car.wk.show();
        
    }
}