Q:

Scala program to create a custom exception

belongs to collection: Scala Exception Handling Programs

YasminRadwan26
Save to bookmark
|
2022-07-09
|
  282 
0

Here, we will create a custom exception class by extending the Exception class and declared the method with the throws keyword.

Scala programming, examples, Scala programming examples,
login and add your own answer to this question

All Answers

YasminRadwan26
2022-07-09
need an explanation for this answer? contact us directly to get an explanation for this answer

Program/Source Code:

The source code to create a custom exception is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to create a custom exception

class MyException(msg: String) extends Exception(msg) {}
class ExceptionEx {
  @throws(classOf[MyException])
  def divide(num1: Int, num2: Int) {
    var result: Int = 0;
    if (num1 == 0) {
      throw new MyException("Divide by 0")
    } else {
      result = (num2 / num1);
      printf("Result: %d\n", result);
    }
  }
}

object Sample {
  // Main method
  def main(args: Array[String]) {
    try {
      var obj = new ExceptionEx();
      obj.divide(0, 10);
    } catch {
      case e: MyException => println(e);
    } finally {
      println("Finally block executed")
    }
  }
}

Output:

MyException: Divide by 0
Finally block executed

Explanation:

Here, we created a MyException class by extending the Exception class and then created a class ExceptionEx class, that contains the divide() method, created with the throws keyword.

And, we created a singleton object Sample and defined the main() function. The main() function is the entry point for the program.

In the main() function, we created object of ExceptionEx class and called divide() method. And, we also defined catch and finally blocks to handle generated exceptions and print appropriate messages on the console screen.

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)

Scala Exception Handling Programs
This question belongs to these collections

Similar questions

need a help?

find thousands of online teachers now
Scala program to demonstrate the NumberFormatExcep... >>
<< Scala program to demonstrate the throws keyword...