class father {
  int n_time;
  private int to_show (int run_time) {
    run_time = n_time + 1; 
    return run_time;
  }
}
class child extends father {
  child() {
    n_time = 5;
    System.out.println(to_show(n_time)); // 7
  }
  public static void main(String[] a) {
    new child();
  }
  private int to_show (int run_time) {
    run_time = n_time + 2; 
    return run_time;
  }
}

class x{
public static void main(String ar[]){
int a = 1; int b; b = a; a = 2;
int c[]={3}; int d[]=c; c[0]=4;
System.out.println(a+b+c[0]+d[0]); 
} // 11
}

Subclas of Exception
java.lang.Object
 java.lang.Throwable
  java.lang.Exception
   java.lang.RuntimeException
    java.lang.IndexOutOfBoundsException
     java.lang.ArrayIndexOutOfBoundsException


class testofexception {
public static void main(String[] args) {
 try  {
  System.out.println(1/0);	  
 }
 catch (Exception e)  {
  System.out.println(e);
 }
 // java.lang.ArithmeticException: / by zero
}
}