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Web Links: 1000+ Java MCQs

Guttitech.com E learning Java 1000+ MCQs questions
Our Java questions and answers focuses on all areas of Java programming language covering 100+ topics in Java. These topics are chosen from “The Complete Reference Java” by Herbert Schildt, the authoritative reference book on Java.
Highlights
– 1000+ Multiple Choice Questions & Answers in Java with explanations
– Lots of MCQs with Java code/programming snippet and its output
– Every MCQ set focuses on a specific topic in Java Language

Who should Practice these Java Questions?
– Anyone wishing to sharpen their skills on Java programming language
– Anyone preparing for aptitude test in Java (both objective type test and Java coding written test)
– Anyone preparing for interviews (campus/off-campus interviews, walk-in interview and company interviews)
– Anyone preparing for entrance examinations and other competitive examinations
– All – Experienced, Freshers and Students

Here’s list of Questions & Answers on Java Programming covering 100+ topics:

1. Qusetions and Answers on Data Types, Variables and Arrays

The section contains questions on integer, character, floating and boolean data types, variables, type casting and conversions and properties of arrays.

Integer and Floating Data Types
Character and Boolean Data Types
Literals & Variables Type Conversions, Promotions and Castings
Arrays

2. Questions on Operators and Control Statements

The section contains questions on arithmetic, bitwise, relational, boolean and assignment operators. The section also contains questions on control statements.

Arithmetic Operators
Bitwise Operators
Relational Operators and Boolean Logic Operators Assignment Operators and Operator Precedence
Control Statements

3. Questions and Answers on Classes and Methods

The section contains questions on fundamentals of classes, object creation, constructors, method overloading and static keyword.

Class Fundamentals & Declaring objects
Introduction to Methods
Constructors & Garbage Collection
Overloading Methods & Argument Passing Access Control
Arrays Revisited & Keyword static
String Class

4. Questions and Answers on Inheritance and String Handling

The section contains questions on the concepts of objects, method overriding, inheritance and string handling functions like stringbuffer class and methods and other string comparison functions.

Inheritance
Method overriding
The Object Class
String Handling Basics
Character Extraction String Comparison
Searching & Modifying a String
StringBuffer class
StringBuffer Methods

5. Questions and Answers on Packages and Interfaces

The section contains questions on packages, interfaces and various concepts of java.lang like data types, types of classes, character and byte streams.

Packages
Interfaces
Java.lang Introduction
Java.lang – Integer, Long And Character Wrappers
Java.lang – Void, Process and System Class Java.lang – Object & Math Class
Java.io Introduction
Java.io Byte Streams
Java.io Character Streams

6. Questions and Answers on Networking and Serialization

The section contains questions and answers on basics of networking, serialization and deserialization, aspects of java.util like maps, array list, hash set, tree set, linked list, stacks, vectors, dictionary and hash table. The questions under networking covers topics of URL, http response, url connection, servers, sockets and httpd class.

Serialization
Serialization & Deserialization
Networking Basics
URL class
HttpResponse & URLConnection Class
networking – Server, Sockets & httpd Class
networking – httpd.java Class
networking – Datagrams Java.util – ArrayList Class
Java.util – LinkedList, HashSet & TreeSet Class
Java.util – Maps
Java.util – Array Class
Java.util – Vectors & Stack
Java.util – Dictionary, Hashtable & Properties
Java.util – BitSet & Date class

7. Questions on Exception Handling

The section contains questions on basics of exception handling, exception types like throw, throws and nested try.

Methods Taking Parameters
Exceptional Handling Basics Exceptions Types
Throw, Throws & Nested Try

8. Questions and Answers on Multithreading

The section contains questions and answers on basics of multithreading, thread basics, thread creation, isAlive(), join() and thread synchronization basics.

isAlive(), Join() & Thread Synchronization
Implementing Runnable interface for Threads
Thread class
Multithreading Basics Networking Basics
Finally & Built in Exceptions
Creating Threads

9. Questions on I/O

The section contains questions and answers on basics of I/O, file reading and writing and reading console i/p and writing console o/p.

Input & Output Basics
Reading Console Input Writing Console Output
Reading & Writing Files

10. Questions and Answers on Applets

The section contains questions on fundamentals of applets, RMI and java API packages.

Applets Fundamentals
Core Java API Packages Remote Method Invocation (RMI)
Text Formatting

11. Questions on Event Handling

The section conatins questions on basics of event handling, different types of event handling classes like actionevent, componentevent, containerevent, textevent, mouseevent, windowevent and other event listener interfaces.

Event Handling Basics
ActionEvent & AdjustmentEvent Class
ComponentEvent, ContainerEvent & FocusEvent Class MouseEvent, TextEvent & WindowEvent Class
Event Listeners Interfaces

12. Questions and Answers on Java.lang Package

The section contains questions on classes, methods, functions and wrappers of java.lang package. These include rounding functions, math methods, byte, short, double and float wrappers and runtime and classloader classes.

Java.lang – Rounding Functions
Java.lang – Miscellaneous Math Methods & StrictMath Class
Java.lang – ThreadGroup class & Runnable Interface
Java.lang – System Class Advance
Java.lang – Double & Float Wrappers
Java.lang – Byte & Short Wrappers
Java.lang – Character Wrapper Advance Java.lang – Boolean Wrapper Advance
Java.lang – Runtime & ClassLoader Classes
java.lang – Class

13. Questions and Answers on Collection Framework

The section contains questions on collection interface and algorithms, iterators and command line arguments, locale, random, observable and timer classes, generic methods and type interfaces.

Collection Framework Overview
Collections Interface
Collection Algorithms
Iterators
Locale & Random Classes
Observable & Timer Class
Restrictions On Generics
Wildcards Recursion
Command Line Arguments
Inheritance – Abstract Class and Super
Try & Catch
Creating Exceptions
Generics
Generic Methods
Type Interface
If you would like to learn Java Programming thoroughly, you should attempt to work on the complete set of Java questions and answers mentioned above. It will immensely help anyone trying to crack Java Programming or an interview.
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