java quiz on exception handling

Which of these keywords is not a part of exception handling?

• try

• finally

• thrown

• catch

public class Foo

{

public static void main(String[] args)

{

try

{

return;

}

finally

{

System.out.println( "Finally" );

}

}

}

• Finally

• Compilation fails.

• The code runs with no output

• An exception is thrown at runtime.

What will be the output of the program?

try

{

int x = 0;

int y = 5 / x;

}

catch (Exception e)

{

System.out.println("Exception");

}

catch (ArithmeticException ae)

{

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

}

System.out.println("finished");

• finished

• runtime error.

• Compilation fails

• Exception.

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 */

}

}

• ABCD

• Compilation fails.

• C is printed before exiting with an error message.

• BC is printed before exiting with an error message

public class X

{

public static void main(String [] args)

{

try

{

badMethod();

System.out.print("A");

}

catch (RuntimeException ex) /* Line 10 */

{

System.out.print("B");

}

catch (Exception ex1)

{

System.out.print("C");

}

finally

{

System.out.print("D");

}

System.out.print("E");

}

public static void badMethod()

{

throw new RuntimeException();

}

}

• BD

• BDE

• BD

• DE

java.lang.NullPointerException is a

• Error

• runtime exception

• Compile time exception

• None

FileNotFoundException

• Is a subclass/extends IOException

• Is a Compile time exception

• Found in java.io package

• All

Exception and Error are direct subclasses of?

• .BaseException

• Throwable

• Object

• RuntimeException

What block is always executed, independently of a exception being raised?

• throws

• finally

• catch

• throw

What keyword is used to explicitly raise a exception?

• catch

• throw

• throws

• raise