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Exceptions problems

  • 1. 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() {} 
}

  • Options
  • A. AC
  • B. BC
  • C. ACD
  • D. ABCD
    • Discuss
  • 2. What will be the output of the program? 
    public class RTExcept 
{
    public static void throwit () 
    {
        System.out.print("throwit ");
        throw new RuntimeException();
    }
    public static void main(String [] args) 
    {
        try 
        {
            System.out.print("hello ");
            throwit();
        }
        catch (Exception re ) 
        {
            System.out.print("caught ");
        }
        finally 
        {
            System.out.print("finally ");
        }
        System.out.println("after ");
    }
}

  • Options
  • A. hello throwit caught
  • B. Compilation fails
  • C. hello throwit RuntimeException caught after
  • D. hello throwit caught finally after
    • Discuss
  • 3. 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 */
    } 
}

  • Options
  • A. ABCD
  • B. Compilation fails.
  • C. C is printed before exiting with an error message.
  • D. BC is printed before exiting with an error message.
    • Discuss
  • 4. What will be the output of the program? 
    public class Foo 
{  
    public static void main(String[] args) 
    {
        try 
        { 
            return; 
        } 
        finally 
        {
            System.out.println( "Finally" ); 
        } 
    } 
}

  • Options
  • A. Finally
  • B. Compilation fails.
  • C. The code runs with no output.
  • D. An exception is thrown at runtime.
    • Discuss
  • 5. What will be the output of the program? 
    public class MyProgram 
{
    public static void main(String args[])
    {
        try 
        {
            System.out.print("Hello world ");
        }
        finally 
        {
            System.out.println("Finally executing ");
        }
    }
}

  • Options
  • A. Nothing. The program will not compile because no exceptions are specified.
  • B. Nothing. The program will not compile because no catch clauses are specified.
  • C. Hello world.
  • D. Hello world Finally executing
    • Discuss
  • 6. What will be the output of the program? 
    public class Test 
{  
    public static void aMethod() throws Exception 
    {
        try /* Line 5 */
        {
            throw new Exception(); /* Line 7 */
        } 
        finally /* Line 9 */
        {
            System.out.print("finally "); /* Line 11 */
        } 
    } 
    public static void main(String args[]) 
    {
        try 
        {
            aMethod();  
        } 
        catch (Exception e) /* Line 20 */
        {
            System.out.print("exception "); 
        } 
        System.out.print("finished"); /* Line 24 */
    } 
}

  • Options
  • A. finally
  • B. exception finished
  • C. finally exception finished
  • D. Compilation fails
    • Discuss
  • 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 (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(); 
    } 
}

  • Options
  • A. BD
  • B. BCD
  • C. BDE
  • D. BCDE
    • Discuss
  • 8. 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");

  • Options
  • A. finished
  • B. Exception
  • C. Compilation fails.
  • D. Arithmetic Exception
    • Discuss
  • 9. What will be the output of the program? 
    class Exc0 extends Exception { } 
class Exc1 extends Exc0 { } /* Line 2 */
public class Test 
{  
    public static void main(String args[]) 
    { 
        try 
        {  
            throw new Exc1(); /* Line 9 */
        } 
        catch (Exc0 e0) /* Line 11 */
        {
            System.out.println("Ex0 caught"); 
        } 
        catch (Exception e) 
        {
            System.out.println("exception caught");  
        } 
    } 
}

  • Options
  • A. Ex0 caught
  • B. exception caught
  • C. Compilation fails because of an error at line 2.
  • D. Compilation fails because of an error at line 9.
    • Discuss
  • 10. What will be the output of the program? 
    public class X 
{  
    public static void main(String [] args) 
    {
        try 
        {
            badMethod(); /* Line 7 */
            System.out.print("A"); 
        } 
        catch (Exception ex) /* Line 10 */
        {
            System.out.print("B"); /* Line 12 */
        } 
        finally /* Line 14 */
        {
            System.out.print("C"); /* Line 16 */
        }  
        System.out.print("D"); /* Line 18 */
    } 
    public static void badMethod() 
    {
        throw new RuntimeException(); 
    } 
}

  • Options
  • A. AB
  • B. BC
  • C. ABC
  • D. BCD
    • Discuss

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