Test : Java_15

This test contains 10 questions based on Java.
Each question answered correctly awards you 1 point and each incorrect answer has a penalty of -0.25 points, no points are deducted for unattempted answers.

Select Test Type

You Get +1 for each correct answer and -0.25 for each incorrect answer

Time Left - minutes :seconds

Which of these method is used to avoid polling in Java?

wait()	notify()
notifyAll()	All of the mentioned

D

What is the output of this program?

class exception_handling {
        public static void main(String args[]) {
            try {
                int a, b;
                b = 0;
                a = 5 / b;
                System.out.print("A");
            }
            catch(ArithmeticException e) {
         System.out.print("B");         
            }
        }
    }

A	B
Compilation Error	Runtime Error

B

Which of these access specifier must be used for class so that it can be inherited by another sub class?

public	private
both a & b	None of the mentioned

A

what will be the output int i=10; System.out.println(i++);

9	10
11	12

B

i++ will first use the value and then increment it by one.

What is the output of this program?

 class Output {
        public static void main(String args[]) 
        {    
             boolean a = true;
             boolean b = false;
             boolean c = a ^ b;
             System.out.println(!b);
        } 
    }

true	false
0	1

A

What is the priority of the thread in output of this program?

  class multithreaded_programing {
        public static void main(String args[]) {
            Thread t = Thread.currentThread();
            t.setName("New Thread");
            System.out.println(t.getName());        
        }
    }

main	Thread
New Thread	Thread[New Thread,5,main]

C

Which of the folowing stements are incorrect?

Default constructor is called at the time of declaration of the object if a constructor has not been defined.	Constructor can be parameterized.
finalize() method is called when a object goes out of scope and is no longer needed.	finalize() method must be declared protected.

C

Which of these class is used to make a thread?

String	System
Thread	Runnable

C

Which of these interface is not a part of Java?s collection framework?

List	Set
SortedMap	SortedList

D

What is the value returned by unction compareTo() if the invoking string is less than the string compared?

zero	value less than zero
value greater than zero	None of the mentioned

B

Finish Test