Answer:

input 1:	input 2:
Enter an integer: Rats	Enter an integer: 12
You entered bad data. Run the program again. Good-by	The square of 12 is 144 Good-by

Syntax of `try{}` and `catch{}`

Here is ONE form of the try/catch structure. (There are other forms soon to be discussed.)

try
{
  // statements which might throw 
  // various types of exceptions
}

catch ( SomeExceptionType ex )
{
  // statements to handle this
  // type of exception
}

catch ( AnotherExceptionType ex )
{
  // statements to handle this
  // type of exception
}

catch ( YetAnotherExceptionType ex )
{
  // statements to handle this
  // type of exception
}

// Statements following the structure

Here are a few syntax rules:

The statements in the try{} block can include:
- Statements that always work.
- Statements that might throw an Exception of one type or another.

One or several catch{} blocks follow the try() block.
- Sometimes there can be no catch{} blocks. This will be discussed later in this chapter.

Each catch{} block describes the type of Exception it catches.

It does this in a one-item parameter list: ( ExceptionType parameter )
the parameter is a reference variable that will refer to the Exception object when it is caught.

QUESTION 6:

Is the following code fragment OK?

    try
    {
      // various statements
    }

    catch (InputMismatchException ex )
    {
      // various statements
    }

    catch (IOException ex )
    {
      // various statements
    }

    System.out.println("Good-by" );

Answer:

Syntax of try{} and catch{}

QUESTION 6:

Syntax of `try{}` and `catch{}`