1
When does Exceptions in Java arises in code sequence?
Correct Answer
Run Time
☑ MCQ PRACTICE
Object Oriented Programming through Java Unit 3
Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.
Object Oriented Programming through Java - Unit-3
2
Which of these keywords is not a part of exception handling?
Correct Answer
thrown
3
Which of these keywords must be used to monitor for exceptions?
Correct Answer
try
4
Which of these keywords must be used to handle the exception thrown by try block in some rational manner?
Correct Answer
catch
5
Which of these keywords is used to manually throw an exception?
Correct Answer
throw
6
When does Exceptions in Java arises in code sequence?
Correct Answer
Run Time
7
Which of these keywords is not a part of exception handling?
Correct Answer
thrown
8
Which of these keywords must be used to monitor for exceptions?
Correct Answer
try
9
Which of these keywords must be used to handle the exception thrown by try block in some rational manner?
Correct Answer
catch
10
Which of these is a super class of all errors and exceptions in the Java language?
Correct Answer
Throwable
11
In which of the following package Exception class exist?
Correct Answer
java.lang
12
Which exception is thrown when divide by zero statement executes?
Correct Answer
ArithmeticException
13
What is multithreaded programming?
Correct Answer
It's a process in which two or more parts of same process run simultaneously
14
Which of these are types of multitasking?
Correct Answer
Process and Thread based
15
Thread priority in Java is?
Correct Answer
Integer
16
What will happen if two thread of the same priority are called to be processed simultaneously?
Correct Answer
It is dependent on the operating system
17
Which of these statements is incorrect?
Correct Answer
A thread can exist only in two states, running and blocked
18
Which of these keywords are used to implement synchronization?
Correct Answer
synchronized
19
Which of this method is used to avoid polling in Java?
Correct Answer
all of the mentioned
20
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?
Correct Answer
wait()
21
Which of these method wakes up the first thread that called wait()?
Correct Answer
notify()
22
Which of these method wakes up all the threads?
Correct Answer
notifyAll()
23
What is synchronization in reference to a thread?
Correct Answer
It's a process of handling situations when two or more threads need access to a shared resource
24
Which of these keywords are used to implement synchronization?
Correct Answer
synchronized
25
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?
Correct Answer
wait()
26
How can synchronization be achieved in Java threads?
Correct Answer
Using the synchronized keyword.
27
What is a thread in Java?
Correct Answer
A lightweight process that executes a sequence of instructions.
28
Which class is used to create a thread in Java?
Correct Answer
Thread
29
What is the purpose of the wait() method in Java threads?
Correct Answer
To pause the execution of a thread.
30
Which method is used to start the execution of a thread?
Correct Answer
start()