继承1

package com.hanqi.z1p1;

public class Instrument {

    public void play()
    {
        System.out.println("弹奏乐器");
    }
    
    
    
}

package com.hanqi.z1p1;

public class Wind extends Instrument {

    public void play()
    {
        System.out.println("弹奏Wind");
    }
    
    
    public void play2()
    {
        System.out.println("调用Wind的play2");
    }
    
}

package com.hanqi.z1p1;

public class Brass extends Instrument{

    public void play()
    {
        System.out.println("弹奏Brass");
    }
    
    public void play2()
    {
        System.out.println("调用Brass的play2");
    }
    
    
    
}

package com.hanqi.z1p1;

public class Music {

    
    public static void tune(Instrument i) 
    {
    i.play();    
    }
    
    
    public static void main(String[] args) {
        // TODO 自动生成的方法存根

        Wind w=new Wind();
        tune(w);
        Brass b =new Brass();
        tune(b);
        
        
        
        
        
    }

}

运行结果：