What is Static Initializer Code

by

: A class can have a block of initializer code that is simply surrounded by curly

braces and labeled as static e.g.

Code:

public class Demo{

static int =10;

static{

System.out.println(�Hello world�);

}

}

And this code is executed exactly once at the time of class load

In Java, a static initializer block is a block of code within a class that is executed only once when the class is loaded into the Java Virtual Machine (JVM). It is used to initialize static variables or perform any one-time initialization tasks for the class.

Here’s an example of a static initializer block:

java
public class MyClass {
// static variable
private static int myStaticVariable;// static initializer block
static {
// initialization code for myStaticVariable
myStaticVariable = 10;

// additional initialization tasks if needed
System.out.println(“Static initializer block executed”);
}

// rest of the class code
}

In this example, the static initializer block is responsible for initializing the myStaticVariable and may include additional tasks. The block is executed when the class is loaded, and it runs only once.

It’s important to note that the static initializer block is different from an instance initializer block, which is used for initializing instance variables when an object is created.