Variable Declaration and Init Java Guru

class Test{
   public static void main(String args[]){
   //declare variables
   int saif;
   int saud;
   
   //initialize them
   saif=90;
   saud=100;

   System.out.println(saif+saud);
   
   }
}

Compile and Run 
C:\Users\Fedora\Documents>javac Test.java
C:\Users\Fedora\Documents>java Test
190