Learning the Spring3 framework today, I encountered the getInterfaces() method when I understood the simulation implementation of the Spring Ioc container. The getInterfaces() method is related to Java's reflection mechanism. It can get the interface implemented by this object.
E.g:
Class<?> string01 = person.getClass().getInterfaces()[0];
//Get the first interface implemented by the person object
Detailed examples are as follows:
Person class:
package com.deciphering.spring;
public class Person implements eagle,whale{
private String name = "小明";
private int id = 10001;
public void Speak(String name){
System.out.println("My name"+name+" "+ "Number"+id);
}
@Override
public void fly() {
System.out.println("I can Fly!!!");
}
@Override
public void swim() {
System.out.println("I can swimming!!!");
}
public static void main(String args[]){
Person person = new Person();
person.Speak("小明");
person.fly();
person.swim();
System.out.println("---------------");
Class<?> string01 = person.getClass().getInterfaces()[0];
Class<Person> string02 = (Class<Person>) person.getClass().getInterfaces()[1];
System.out.println(string01);
System.out.println(string02);
}
}
Eagle interface:
package com.deciphering.spring;
public interface eagle {
public void fly();
}
whale interface:
package com.deciphering.spring;
public interface whale {
public void swim();
}
operation result:
