The order in which members are executed when the Java class is created

Static code blocks are executed once when the class is first used, and before the constructor executes. Whenever a class is used, even a new object (such as declaring a variable only) is executed and executed only once. Typically used to initialize a class.

Static code blocks are executed first, and static members (who are executed first). No matter how many new static blocks and static members are executed only once

Then execute the member variable, the last constructor. New member variables and constructors execute several times.

Code:

1. Declaring the Staitcblock class

 Public classStaticBlock1 {Private StaticString tag= "333"; //member Variables    Private  intage1=Setage (); //constructor Function     PublicStaticBlock1 () {LOG.E (TAG,"Constructors"); }    //Static code block    Static{log.e (TAG,"Static code block" ); }    //Static Members    Private Static intAge2=SetAge2 ();  Public Static voidMain (string[] args) {StaticBlock1 B1=NewStaticBlock1 (); StaticBlock1 B2=NewStaticBlock1 (); }    Private intSetage () {LOG.E (TAG,"GetAge1: Method 1" ); return3; }    Private Static intSetAge2 () {LOG.E (TAG,"GetAge2: Method 2" ); return333; }}

2. Create the Staticboloc class in activity

LOG.E (TAG, "OnCreate:------------------------start" );        StaticBlock1 B1=new  StaticBlock1 ();        " ----------------------------------------------------------------------------------" );        StaticBlock1 b2=new StaticBlock1 ();

3. Results

The order in which members are executed when the Java class is created