Question: 6 -

Which exception is thrown when divide by zero statement executes?

None of these

ArithmeticException

NumberFormatException

NullPointerException

Answer:

ArithmeticException

Solution:

ArithmeticException is thrown when divide by zero statement executes.

Question: 7 -

What will be the output of the program?

public class X 
{  
    public static void main(String [] args) 
    {
        try 
        {
            badMethod();  
            System.out.print("A"); 
        }  
        catch (Exception ex) 
        {
            System.out.print("B");  
        } 
        finally 
        {
            System.out.print("C"); 
        } 
        System.out.print("D"); 
    }  
    public static void badMethod() 
    {
        throw new Error(); /* Line 22 */
    } 
}

C is printed before exiting with an error message

Compilation fails

ABCD

BC is printed before exiting with an error message

Answer:

C is printed before exiting with an error message

Solution:

Error is thrown but not recognised line(22) because the only catch attempts to catch an Exception and Exception is not a superclass of Error. Therefore only the code in the finally statement can be run before exiting with a runtime error (Exception in thread "main" java.lang.Error).

Question: 8 -

In which of the following package Exception class exist?

java.lang

java.file

java.util

java.io

Answer:

java.lang

Solution not available.

Question: 9 -

Which of these is a super class of all errors and exceptions in the Java language?

Throwable

RunTimeExceptions

None of the above

Catchable

Answer:

Throwable

Solution:

Throwable is a super class of all errors and exceptions in the Java language

Question: 10 -

What will be the output of the program?

public class Foo 
{  
    public static void main(String[] args) 
    {
        try 
        { 
            return; 
        } 
        finally 
        {
            System.out.println( "Finally" ); 
        } 
    } 
}

Compilation fails

The code runs with no output

Finally

An exception is thrown at runtime

Answer:

Finally

Solution not available.