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Can you solve these questions?

Which of the following is true of the object thrown by a throw statement?

Should be assignable to the Exception type

Should be assignable to String type

Should be assignable to Throwable type

Should be assignable to the Error type

Correct! Wrong!

Which is a Basic interface that all other interface inherits?

List

Set

Array

Collection

Correct! Wrong!

Which option is false about the final keyword?

A final class cannot be extended.

A final class cannot extend other classes.

A final method cannot be overridden in its subclasses.

A final method can be inherited.

Correct! Wrong!

Which method is used to add an element and corresponding key to a map?

addd()

set()

put()

redo()

Correct! Wrong!

Which of the following constructor is used to provide different values to distinct objects?

Parameterized constructor

Default constructor

None of the above

Overloading constructor

Correct! Wrong!

Which of the following constant are defined in Character wrapper?

TYPE

All of the mentioned

MAX_RADIX

MAX_VALUE

Correct! Wrong!

Which method is used to retrieve the elements in properties object at specific location?

ElementAt()

getProperty()

get()

Elementat()

Correct! Wrong!

Which method is used to randomize all elements in a list?

randomize()

rand()

shuffle()

ambiguous()

Correct! Wrong!

What will happen if we call run() directly instead of start()?

None of these

Both a and b

the run() method goes onto the current call stack rather than at the beginning of a new call stack.

Each thread begins with a separate call stack.

Correct! Wrong!

Which package is used for all the text related modifications?

java.lang.text

java.text

java.awt

java.text.modify

Correct! Wrong!

How many JDBC driver types does Sun define?

Four

Two

One

Three

Correct! Wrong!

What is the disadvantage of Garbage Collection?

It makes java memory efficient because the garbage collector removes the unreferenced objects from heap memory

both a and b

None of the above

The garbage collector automatically does it, so we don't need to make extra efforts

Correct! Wrong!

Nameless object refers to _______

An object created with a new keyword.

An object without a reference.

Superclass object created in the subclass

A reference object without a name.

Correct! Wrong!

What programming language(s) or scripting language(s) does Java Server Pages (JSP) support?

Java only

VBScript only

All of the above are supported

Jscript only

Correct! Wrong!

Which of the below is not a subinterface of Queue?

BlockingQueue

BlockingEnque

None of these

TransferQueue

Correct! Wrong!

If an object acquires all the properties and behaviours of the parent object, then it is called as ________

Inheritance

None of the above

Polymorphism

Encapsulation

Correct! Wrong!

Which constructs an anonymous inner class instance?

System.out.println(new Runnable() {public void run() { }});

Runnable r = new Runnable(public void run() { });

Runnable r = new Runnable { public void run(){}};

Runnable r = new Runnable() { };

Correct! Wrong!

Which method can be used to search an element in a list?

find()

sort()

binaryserach()

get()

Correct! Wrong!

Which of the method is used to delete the last element in a LinkedList object?

delete()

deleteLast()

removeLast()

remove()

Correct! Wrong!

Which variables are created inside an object when we create an object by making use of a new keyword?

Local variables

Instance variables

Class Variables

Static variables

Correct! Wrong!

Java Quiz

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Can you solve these questions?

Which of the following is true of the object thrown by a throw statement?

Which is a Basic interface that all other interface inherits?

Which option is false about the final keyword?

Which method is used to add an element and corresponding key to a map?

Which of the following constructor is used to provide different values to distinct objects?

Which of the following constant are defined in Character wrapper?

Which method is used to retrieve the elements in properties object at specific location?

Which method is used to randomize all elements in a list?

What will happen if we call run() directly instead of start()?

Which package is used for all the text related modifications?

How many JDBC driver types does Sun define?

What is the disadvantage of Garbage Collection?

Nameless object refers to _______

What programming language(s) or scripting language(s) does Java Server Pages (JSP) support?

Which of the below is not a subinterface of Queue?

If an object acquires all the properties and behaviours of the parent object, then it is called as ________

Which constructs an anonymous inner class instance?

Which method can be used to search an element in a list?

Which of the method is used to delete the last element in a LinkedList object?

Which variables are created inside an object when we create an object by making use of a new keyword?

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ENROLL into ABC's 5 Days FREE Orientation Program

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Commitment to Excellence

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Welcome to ABC

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Experience Tech Skilling Through Edutainment

Can you solve these questions?

Which of the following is true of the object thrown by a throw statement?

Which is a Basic interface that all other interface inherits?

Which option is false about the final keyword?

Which method is used to add an element and corresponding key to a map?

Which of the following constructor is used to provide different values to distinct objects?

Which of the following constant are defined in Character wrapper?

Which method is used to retrieve the elements in properties object at specific location?

Which method is used to randomize all elements in a list?

What will happen if we call run() directly instead of start()?

Which package is used for all the text related modifications?

How many JDBC driver types does Sun define?

What is the disadvantage of Garbage Collection?

Nameless object refers to _______

What programming language(s) or scripting language(s) does Java Server Pages (JSP) support?

Which of the below is not a subinterface of Queue?

If an object acquires all the properties and behaviours of the parent object, then it is called as ________

Which constructs an anonymous inner class instance?

Which method can be used to search an element in a list?

Which of the method is used to delete the last element in a LinkedList object?

Which variables are created inside an object when we create an object by making use of a new keyword?

Hear From ABC's Trainees...

Course Brochure

Register for a free demo

360⁰ Skilling
Eco-System

Pioneering
Edutainment
ENROLL into ABC's
5 Days FREE Orientation Program
100_%

ENROLL into ABC's
5 Days FREE Orientation Program

100_%

Play to Your
Strengths

Commitment to
Excellence

First-Rate
Curriculum