Java Syntax

    Classes
    There are some kind of errors that might occur during the execution of the program. An exception is an event that occurs and  interrupts the normal flow of instructions. That is exceptions are objects that store the information about the occurrence of errors.
    

    Hello world (First java program)
    Java is a high level programming language and it is used to develop the robust application. Java application program is platform independent and can be run on any operating System
       

    Under Standing the HelloWorld Program
    Class is the building block in Java, each and every methods & variable exists within the class or object. (instance of program is called object ). The public word specifies the accessibility of the class.
    

    Data types, Variables
    The type of value that a variable can hold is called data type. When we declare a variable we need to specify the  type of value it will hold along with the name of the variable.

        Primitive Data Types

         Literals

         Variables

         Declaring and Assigning values to Variables
           

Arrays
In this section you will be introduced to the concept of Arrays in Java Programming language. You will learn how the Array class in java helps the programmer to organize the same type of data into easily manageable format.

     Introduction to Arrays

     Structure of Arrays

     Array Declaration

     Array Initialization

    Array Usage

     Multi-dimensional arrays

    Two-dimensional arrays

    Copying Arrays
    

Control Statements ...

    if
    To start with controlling statements in Java, lets have a recap over the control statements in C++. You must be familiar with the if-then statements in C++. The if-then statement is the most simpler form of control flow statement.
       

    for
    In the world of Java programming, the for loop has made the life much more easier. It is used to execute a block of code continuously to accomplish a particular condition. For statement consists of tree parts i.e. initialization, condition, and iteration.
       

    switch
    Sometimes it becomes cumbersome to write lengthy programs using if and if-else statements. To avoid this we can use Switch statements in Java. The switch statement is used to select multiple alternative execution paths.
       

    while and do-while
    Lets try to find out what a while statement does. In a simpler language, the while statement continually executes a block of statements while a particular condition is true.
       

    Break and Continue Statements
    Sometimes we use Jumping Statements in Java. Using for, while and do-while loops is not always the right idea to use because they are cumbersome to read. Using jumping statements like break and continue it is easier to jump out of loops to control other areas of program flow.
    

Class, Object and Methods

    Class

    Object

    Constructor

    Constructor Overloading
   

Inheritance
To know the concept of inheritance clearly you must have the idea of class and its features like methods, data members, access controls, constructors, keywords this, super etc.

    Simple Inheritance

    Multilevel Inheritance

     Java does not support multiple Inheritance

     super keyword
   

Abstract Methods and Classes
While going through the java language programming you have learned so many times the word abstract. In java programming language the word abstract is used with methods and classes.

    Abstract Method

    Abstract Class
   

Packages
Package is a mechanism for organizing a group of related files in the same directory. In a computer system, we organize files into different directories according to their functionality, usability and category.

    Package categories in Java

    Create Your Own Package

    How to import a package

    Create Subpackages
   

Interface in Java
In this section we will learn about Interface and Marker Interfaces in Java. This tutorial will clarify you questions "What is marker Interface?" and "Why use Marker Interface?" and "difference between abstract class and the interface".

Exception Handling
Exception, that means exceptional errors. Actually exceptions are used for handling errors in programs that occurs during the program execution. During the program execution if any error occurs and you want to print your own message.....


Input and Output
The Java I/O means Java Input/Output and is a part of java.io package. This package has a InputStream and OutputStream. Java InputStream is  for reading the stream, byte stream and array of byte stream.

    Introduction

    Read Text from Standard IO

    Filter Files in Java

    Java read file line by line

    Create File in Java

    Copying one file to another

    Serializing an Object in Java

    De-serializing an Object in java



Applets
Applet is java program that can be embedded into HTML pages. Java applets runs on the java enables web browsers such as mozila and internet explorer. Applet is designed to run remotely on the client browser, so there are some restrictions on it.

    Introduction

    Advantages of Applet

    Disadvantages of Java Applet

    Life Cycle of Applet

    Creating First Applet Example

    Passing Parameter in Java Applet