Initialization/assignment procedures for variables in Java classes __java

Source: Internet
Author: User
public class Person {
Public String name= ' person ';
int age=0;

{
System.out.println ("Initialization block:" +name);
Name = "InitBlock";
System.out.println ("Initialization block:" +name);
}

Public person () {
Name= "Constrcutor";
System.out.println ("constructor:" +name);
}
}


public class Child extends person {

public String grade;


public static void Main (string[] args)
{
Person p = new Child ();
System.out.println (P.name);
}
}


Run Result:

Initialization block: Person
Initialization block: InitBlock
Builder: Constrcutor
Constrcutor


Summarize:

1. Assignment when defining a variable is first performed 2. The assignment performed in the initialization block is followed by 3. Assignment in the constructor method is finally executed

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