4 types of code blocks in Java

/*

============================== learned something new ==============================================
differences between static code blocks, construction code blocks, and constructors
Static code block: Used to initialize a class, the class loads when it is loaded to execute, function: to initialize the class, only once.
constructs a code block: Used to initialize an object. This part is executed as long as the object is created, and takes precedence over the constructor.
constructor: When an object is initialized for the corresponding object, the corresponding constructor is selected to initialize the object.
Synchronous code block: The synchronization code block mainly appears in multi-threading.
Ordinary code block: {} that appears in a method or statement is called a normal code block. The normal code blocks and the general order of execution of statements are determined by the order in which they appear in the code-"first occurrence first".
when an object is created, the three are loaded in the execution order: static code block---> Construct code block---> Constructors
*/
Public class Test2 {

Public static void Main (string[] args) {
//TODO auto-generated method stub
{
System.out.println ("Normal code block 1");

}
new Test2 ();

{
System.out.println ("Normal code block 2");

}
System.out.println ();

new Test2 ();
}
Public Test2 ()
{

System.out.println ("======== This is the tectonic method =========");

}

{
System.out.println ("========= This is a tectonic block =========");
}

Static
{

System.out.println ("========= This is static block =========");

}

}

Execution Result:

========= This is a static block =========
Common code block 1
========= This is the construction block =========
======== This is the construction method =========
Common code block 2

========= This is the construction block =========
======== This is the construction method =========

4 types of code blocks in Java