//user defined exception
class MyException extends Exception{
   String str1;
   
   MyException(String str2) {
	str1=str2;
   }
   public String toString(){ 
	return ("MyException Occurred: "+str1) ;
   }
}

class EH1{
   public static void main(String args[]) throws ArithmeticException,ArrayIndexOutOfBoundsException{
	//throws
	try{
		System.out.println("Starting of try block");
		//throw
		throw new MyException("This is My error Message");
			
	}
	catch(MyException exp){
		System.out.println("Catch Block") ;
		System.out.println(exp) ;
	}
	//nested try catch
	try{
        try{     
            try{
            	int arr[]= {1,2,3,4};
            	System.out.println(arr[10]);
            }catch(ArithmeticException e){
            	System.out.print("Arithmetic Exception");
            	System.out.println(" handled in try-block3");
            }
        }
		catch(ArithmeticException e){
           System.out.print("Arithmetic Exception");
           System.out.println(" handled in try-block2");
        }
    }
	//catch hierarchy
    catch(ArithmeticException e3){
    	System.out.print("Arithmetic Exception");
     	System.out.println(" handled in main try-block");
    }
    catch(ArrayIndexOutOfBoundsException e4){
    	System.out.print("ArrayIndexOutOfBoundsException");
     	System.out.println(" handled in main try-block");
    }
    catch(Exception e5){
    	System.out.print("Exception");
     	System.out.println(" handled in main try-block");
     }
	 //finally
	 finally{
      System.out.println("Finally block executed");
    }
	
   }
}

/*
OUTPUT:
Starting of try block
Catch Block
MyException Occurred: This is My error Message
ArrayIndexOutOfBoundsException handled in main try-block
Finally block executed
*/