/**
* 关于接口和接口中多肽问题的实例
*
* @author iflytek
*
*/
interface Singer {
public void sing();
public void sleep();
}
interface Painter {
public void paint();
public void eat();
}
class Student implements Singer {
private String name;
Student(String name) {
this.name = name;
}
public void study() {
System.out.println("studying......");
}
@Override
public void sing() {
System.out.println("student sing......");
}
@Override
public void sleep() {
System.out.println("student sleep......");
}
}
class Teacher implements Singer, Painter {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
Teacher(String name) {
this.name = name;
}
public void teach() {
System.out.println("teacher teach......");
}
@Override
public void paint() {
System.out.println("teacher paint......");
}
@Override
public void eat() {
System.out.println("teacher eat......");
}
@Override
public void sing() {
System.out.println("teacher sing......");
}
@Override
public void sleep() {
System.out.println("teacher sleep......");
}
}
public class TestSinger {
public static void main(String[] args) {
Singer s1 = new Student("le");
s1.sing();
Singer s2 = new Teacher("steven");
s2.sing();
s2.sleep();
Painter p1 = (Painter) s2;
p1.paint();
p1.eat();
System.out.println((Painter) s2 instanceof Teacher);
System.out.println(s2 instanceof Teacher);
System.out.println(p1 instanceof Teacher);
}
}