final variable: we can initialize blank final variable, but only in constructor.

Java Programming Language Class, Object and Methods in java (Article) Class, Object and Methods in java (Program)

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Program:

 
class Calculation{
  final int roll;//blank final variable

  Calculation(){
  roll=10;
  System.out.println(roll);
  }

  public static void main(String args[]){
    new Calculation();
 }
}
 
 
 /* Can we initialize blank final variable?

Yes, but only in constructor. */

Output:

10
Press any key to continue . . .

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