37 Use of final keyword

/*
the final variable cannot be reinitialized with another value
the final method cannot be overridden
the final class cannot be extended
*/
// reinitiating the value of final variable
class Main {
  public static void main(String[] args) {

    // create a final variable
    final int AGE = 32;

    // try to change the final variable
    AGE = 45;
    System.out.println("Age: " + AGE);
  }
}
/*
output
cannot assign a value to final variable AGE
    AGE = 45;
    ^
1 error
*/