Computer science JAVA multiple choice questions Question 6 What is wrong in the

Question

Computer science JAVA multiple choice questions

Question 6

What is wrong in the following program?

public class Quiz2E

    public static void main(String[] args)

    {

        try

        {

            System.out.println("Hello world");

        }

    }

}

Question 6 options:

Nothing is wrong

You cannot have a try block without a catch block or a finally block

A method call that does not declare exceptions cannot be placed inside a try block

You cannot have a try block without a catch block

Question 7

Select the correct statement regarding the program show below:

public class Quiz2G

{

    public static void main(String[] args)

    {

        if (Integer.parseInt(args[0]) == 0)

            throw new Exception("Invalid Command Line Argument");

    }

}

Question 7 options:

The program will not compile because parseInt could throw NumberFormatException and it is never caught

The program will compile without any errors

The program will not compile because Exception is an unchecked exception

The program will not compile because a throws clause is needed

Save

Question 8

The difference between throw and throws is correctly explained by which of the following statements?

Question 8 options:

throws is used in a method signature, throw is used to throw an exception

Either one can be used to throw an exception

throw is a reserved word, but throws is not

The two reserved words are interchangeable

Question 9

What will occur if the catch block in program show below are reversed?

class Quiz2H

{

    public static void main(String[] args)

    {

        try

        {

            aMethod();

            System.out.println("After the call");

        }

        catch (ArithmeticException exception)

        {

            System.out.println("Arithmetic Exception");

        }

        catch (RuntimeException exception)

        {

            System.out.println("Runtime Exception");

        }

        System.out.println("After the try-catch statement");

    }

    private static void aMethod() throws RuntimeException

    {

        int x = 1/0;

    }

}

Question 9 options:

Both exceptions will be caught

Only the RuntimeException will be caught

The program will no longer compile

The change will have no effect, the program will work the same as before

Question 10

What occurs when an exception is not caught in the current method?

Question 10 options:

The exception is propagated to the method that called the current method

The exception is rethrown

The program always terminates and displays an error message

The exception is ignored

Explanation / Answer

6)

correct answer is You cannot have a try block without a catch block or a finally block

7)

The program will not compile because Exception is an unchecked exception

8)

throws is used in a method signature, throw is used to throw an exception

9)

Both the exceptions will be caught

output will be

10)

The exception is propagated to the method that called the current method

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.