It is possible to define a block as static, which is known as static block. tatic block is used to initialize static variables. Static block executes when class file(byte code) is loaded in memory.
It is possible that we can define multiple static blocks in a class.

Example1;

StaticExample3.java

class StaticExample3
{
	static int x;
	static String str;

	static
	{
		x=100;
		str="Silan Software";
	}

	public static void main(String[] args)
	{
		System.out.println("the value of x is:"+x);
		System.out.println("the value of str is:"+str);
	}
}

Output

Example2;

StaticExample4.java

class StaticExample4
{
	static int x;
	static String str;

	static
	{
		System.out.println("In static blcok-1");
		x=100;
		str="Silan Software";
	}
	static
	{
		System.out.println("In static block-2");
		x=200;
		str="JAVA means Silan Software";
	}

	public static void main(String[] args)
	{
		System.out.println("the value of x is:"+x);
		System.out.println("the value of str is:"+str);
	}
}

Output