constructors, static code blocks, static method execution order for Java classes

Source: Internet
Author: User

public class Husband extends persona{
/** Second execution
Public Husband () {
Super ("one");
System.out.println ("both");
}
}

public class Wife extends Persona {
/** Third Execution
Public Wife () {
Super ("four");
}
/** Fourth execution
Public Wife (String name) {
Super (name);
System.out.println ("three");
}
}

public class Persona {
private String name;
Private String sex;
Private Integer age;

Public Persona (String name) {
System.out.println ("My name is:" + name);
}
/** omitted Seter/getter


public class Test {
/**
* Static blocks are executed only once/first
*/
static {
System.out.println ("Here We Go");
}
/** Fifth execution
Public Test () {
System.out.println ("This just a Test");
}
public static void Main (string[] args) {
Husband husband=new Husband ();
Wife wife=new Wife ();
Wife=new Wife ("Five");
Test test=new test ();
Test.say ();

}
/** Final Execution
public static void Say () {
System.out.println ("Say Something");
}
}



Output Result:

Here We Go

My name is: one

Both

My name is: four.

My name is: Five

Three

This just a test

Say Something


  

constructors, static code blocks, static method execution order for Java classes

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.