如题，以下代码运行报错，应该这么运行起来呢？
//TestInterface.java
public interface Singer{
public void sing();
public void dance();
}
public interface Women{
public void cook();
public void care();
}
class Student implements Singer {
private String name;
Student(String _name) {
this.name = _name;
}
public void sing() {
System.out.println(this.name + " is singing!");
}
public void dance() {
System.out.println(this.name + " is dancing!");
}
}
class Teacher implements Women, Singer {
private String name;
Teacher(String _name) {
this.name = _name;
}
public void sing() {
System.out.println(this.name + " is singing!");
}
public void dance() {
System.out.println(this.name + " is dancing!");
}
public void cook() {
System.out.println(this.name + " is cooking!");
}
public void care() {
System.out.println(this.name + " is caring!");
}
}
public class TestInterface {
public static void main(String args[]) {
Student s = new Student("li");
s.sing();
s.dance();
Teacher t = new Teacher("wang");
t.sing();
t.dance();
t.cook();
t.care();
}
}
运行结果(java 13，不用javac编译)
