Final Quiz

When does Exceptions in Java arises in code sequence?

• Compile Time

• Run Time

• can occur any time

• None

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

• try

• finally

• thrown

• catch

class exception_handling

{

public static void main(String args[])

{

try

{

System.out.print("Hello" + " " + 1 / 0);

}

catch(ArithmeticException e)

{

System.out.print("World");

}

}

}

• Hello

• World

• Hello World

• HelloWorld

Which of these keywords must be used to monitor for exceptions?

• try

• finally

• throw

• catch

Which of these classes is not part of Java’s collection framework?

• Maps

• Arrays

• Stack

• Queue

What is Collection in Java?

• A group of objects

• A group of Classes

• A group of Inerfaces

• None

import java.util.*;

class Array

{

public static void main(String args[])

{

int array[] = new int [5];

for (int i = 5; i > 0; i--)

array[5-i] = i;

Arrays.fill(array, 1, 4, 8);

for (int i = 0; i < 5 ; i++)

System.out.print(array[i]);

}

}

• 12885

• 12845

• 58881

• 54881

import java.util.*;

public class genericstack <E>

{

Stack <E> stk = new Stack <E>();

public void push(E obj)

{

stk.push(obj);

}

public E pop()

{

E obj = stk.pop();

return obj;

}

}

class Output

{

public static void main(String args[])

{

genericstack <String> gs = new genericstack<String>();

gs.push("Hello");

System.out.println(gs.pop());

}

}

• H

• Hello

• Compile time Error

• Runtime Error

Which of these keywords are used to implement synchronization?

• synchronize

• sync

• synch

• synchronized

Which of these method is used to tell the calling thread to give up a monitor and go to sleep until some other thread enters the same monitor?

• wait()

• notify()

• notifyall()

• sleep()