//Instrument类
package d922;
public class Instrument {
public void play()
{
System.out.println("弹奏乐器");
}
}
//Wind类
package d922;
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");
}
}
//Brass类
package d922;
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");
}
}
//主类
package d922;
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");
}
}
//运行结果
弹奏Wind
弹奏Brass