Java Exception Handling Basics Online Practice Test 1

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Total Questions: 27

Total Minutes: 27

This ExamTray Free Online Test or Quiz or Trivia tests your Programming Skills on the basics of Java Exception Handling. This practice test displays answers after finishing the exam for review. You can easily clear Competitive Exams and Job Interview Questions. Students can learn Java basics.

Go through Java Theory Notes on Exception Handling before attempting this test.

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1) What is an Exception in Java?

A) An exception is like a generic error error occurring during the time of execution of program

B) An exception may occur due to memory or hardware issues

C) An exception leads to bad experience for an End user of the software

D) All the above

2) All Java exceptions can be handled gracefully. State TRUE or FALSE.

A) TRUE

B) FALSE

C) -

D) -

3) Are the classes Error and Exception similar in Java?

A) No

B) YES

C) -

D) -

4) Which is the super class in Java that bundles all classes to deal with exceptions and errors?

A) Error

B) Exception

C) Throwable

D) Throw

5) Which are the keywords used to handle exceptions in Java?

A) TRY, CATCH

B) FINALLY

C) THROW, THROWS

D) All the above

6) Where should you keep your Java code for checking against runtime exceptions?

A) Inside TRY block

B) Inside CATCH block

C) inside FINALLY block

D) All the above

7) Where should you keep your Java code that helps to take action on the exceptions raised inside TRY block?

A) One more TRY block

B) CATCH block

C) FINALLY block

D) None of the above

8) What is the output of the below Java code with Exceptions?

public class ExceptionTest1
{
  public static void main(String[] args)
  {
    try
    {
      int a=9, b=0;
      int c = a/b;
      System.out.println("Exception occurred.");
    }
    catch(Exception e)
    {
      System.out.println("Catching an Exception.");
    }
  }
}

Exception occurred.
Catching an Exception.

Exception occurred.

Catching an Exception.

D) No output

9) If an exception occurs, all the lines of Java code that is below it stops executing. State TRUE or FALSE.

A) TRUE

B) FALSE

C) -

D) -

10) Java exceptions are handled by ____.

A) Java Compiler

B) Java Runtime

C) -

D) -

11) Can you add more than one CATCH block when handling exceptions in Java?

A) YES

B) NO

C) -

D) -

12) A TRY block is the reason for generating a manual exception or an unexpected Runtime exception. State TRUE or FALSE.

A) TRUE

B) FALSE

C) -

D) -

13) What is the output of the below Java code with Exceptions?

public class ExceptionTest2
{
  public static void main(String[] args)
  {
    try
    {
      int ary[] = {10, 20, 30};
      int tempt = ary[4];
    }
    catch(ArrayIndexOutOfBoundsException e1)
    {
      System.out.println(e1.getMessage());
    }
    catch(Exception e2)
    {
      System.out.println("Some exception");
    }
  }
}

Index 4 out of bounds for length 3

Index 4 out of bounds for length
Some exception

Some exception

D) No exception occurs

14) Choose the correct way of writing multiple CATCH blocks in Java.

try {
  int num = 10/0;	
}
catch(Exception e1)
{
  System.out.println("EXCEPTION");
}
catch(ArithmeticException e2)
{
  System.out.println("ARITHMETIC EXCEPTION");
}

try {
  int num = 10/0;	
}
catch(ArithmeticException e2)
{
  System.out.println("ARITHMETIC EXCEPTION");
}
catch(Exception e1)
{
  System.out.println("EXCEPTION");
}

C) -

D) -

15) Where do you keep the Java code that should be executed at all times even if an exception occurs?

A) inside TRY block

B) inside CATCH block

C) inside FINALLY block

D) All the above

16) What is the output of the below java code with exception handling blocks?

public class ExceptionTest4
{
  public static void main(String[] args)
  {
    try
    {
    }
    catch(Exception e)
    {
    }
    finally
    {
      System.out.println("FINALLY block executed");
    }
  }
}

A) No output

B) FINALLY block executed

C) Compiler error

D) None

17) What is the output of the below Java code with exception handling blocks?

public class ExceptionTest5
{
  public static void main(String[] args)
  {
    int ary[] = new int[2];
    ary[10] = 5;
    try
    {
      int number= 2/0;
    }
    catch(Exception e)
    {
      System.out.println("Divide by Zero");
    }
    finally
    {
      System.out.println("Inside FINALLY block");
    }
  }
}

A) Inside FINALLY block

Divide by Zero
Inside FINALLY block

C) Compiler error

D) No output

18) What is the output of the Java code with FINALLY block and RETURN statement?

public class ExceptionTest6
{
  static void show()
  {
    try
    {
    System.out.println("inside TRY");
    return;
    }
    finally
    {
    System.out.println("inside FINALLY");
    }
  }
  public static void main(String[] args)
  {
    show();
  }
}