The Java language supports three types of comments − Sr.No. Comment & Description 1 /* text */ The compiler ignores…
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Java – Applet Basics
An applet is a Java program that runs in a Web browser. An applet can be a fully functional Java…
Read MoreJava – Multithreading
Java is a multi-threaded programming language which means we can develop multi-threaded program using Java. A multi-threaded program contains two…
Read MoreJava – Sending Email
To send an e-mail using your Java Application is simple enough but to start with you should have JavaMail API…
Read MoreJava – Networking
The term network programming refers to writing programs that execute across multiple devices (computers), in which the devices are all…
Read MoreJava – Serialization
Java provides a mechanism, called object serialization where an object can be represented as a sequence of bytes that includes…
Read MoreJava – Generics
It would be nice if we could write a single sort method that could sort the elements in an Integer…
Read MoreJava – Collections Framework
Prior to Java 2, Java provided ad hoc classes such as Dictionary, Vector, Stack, and Properties to store and manipulate…
Read MoreJava – Data Structures
The data structures provided by the Java utility package are very powerful and perform a wide range of functions. These…
Read MoreJava – Packages
Packages are used in Java in order to prevent naming conflicts, to control access, to make searching/locating and usage of…
Read MoreJava – Interfaces
An interface is a reference type in Java. It is similar to class. It is a collection of abstract methods.…
Read MoreJava – Encapsulation
Encapsulation is one of the four fundamental OOP concepts. The other three are inheritance, polymorphism, and abstraction. Encapsulation in Java…
Read MoreJava – Abstraction
As per dictionary, abstraction is the quality of dealing with ideas rather than events. For example, when you consider the…
Read MoreJava – Polymorphism
Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP…
Read MoreJava – Overriding
In the previous chapter, we talked about superclasses and subclasses. If a class inherits a method from its superclass, then…
Read MoreJava – Inheritance
Inheritance can be defined as the process where one class acquires the properties (methods and fields) of another. With the…
Read MoreJava – Inner classes
Nested Classes In Java, just like methods, variables of a class too can have another class as its member. Writing…
Read MoreJava – Exceptions
An exception (or exceptional event) is a problem that arises during the execution of a program. When an Exception occurs…
Read MoreJava – Files and I/O
The java.io package contains nearly every class you might ever need to perform input and output (I/O) in Java. All…
Read MoreJava – Methods
A Java method is a collection of statements that are grouped together to perform an operation. When you call the…
Read MoreJava – Regular Expressions
Java provides the java.util.regex package for pattern matching with regular expressions. Java regular expressions are very similar to the Perl…
Read MoreJava – Date and Time
Java provides the Date class available in java.util package, this class encapsulates the current date and time. The Date class…
Read MoreJava – Arrays
Java provides a data structure, the array, which stores a fixed-size sequential collection of elements of the same type. An…
Read MoreJava – Strings Class
Strings, which are widely used in Java programming, are a sequence of characters. In Java programming language, strings are treated…
Read MoreJava – Character Class
Normally, when we work with characters, we use primitive data types char. Example char ch = 'a'; // Unicode for…
Read MoreJava – Numbers Class
Normally, when we work with Numbers, we use primitive data types such as byte, int, long, double, etc. Example int…
Read MoreJava – Decision Making
Decision making structures have one or more conditions to be evaluated or tested by the program, along with a statement…
Read MoreJava – Loop Control
There may be a situation when you need to execute a block of code several number of times. In general,…
Read MoreJava – Constructors
A constructor initializes an object when it is created. It has the same name as its class and is syntactically…
Read MoreJava – Modifier Types and Basic Operators
Modifiers are keywords that you add to those definitions to change their meanings. Java language has a wide variety of…
Read MoreJava – Basic Datatypes and Variables Types
Variables are nothing but reserved memory locations to store values. This means that when you create a variable you reserve…
Read MoreJava – Object and Classes
Java is an Object-Oriented Language. As a language that has the Object-Oriented feature, Java supports the following fundamental concepts −…
Read MoreJava – Basic syntax
When we consider a Java program it can be defined as a collection of objects that communicate via invoking each…
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