Static block is used for initializing the static variables.This block gets executed when the class is loaded in the memory. A class can have multiple Static blocks, which will execute in the same sequence in which they have been written into the program.
Here both the static variables were initialized before we accessed them in the main method.
static int n;
static String str;
n = 97;
str = "Static keyword in Java";
public static void main(String args)
System.out.println("Value of num: "+n);
System.out.println("Value of mystr: "+str);