static {}

In Java, a static block is a special type of block that is defined inside a class and is executed only once, when the class is loaded into memory by the Java Virtual Machine (JVM).

The syntax for a static block is as follows:

static {
   // code to be executed
}

The code inside the static block is executed only once, when the class is first loaded into memory. This makes it useful for performing one-time initialization of static variables, or for setting up any static resources that need to be initialized before the class can be used.

Here's an example of a static block that initializes a static variable:

public class MyClass {
    public static int myStaticVariable;

    static {
        myStaticVariable = 42;
    }
}

In this example, the static block sets the value of `myStaticVariable` to 42 when the class is loaded into memory. This ensures that the variable is initialized before it is used in any other part of the program.