Basic Java Language Elements

1. Java keyboards
   There are few keywords in Java programming language. Remember, we cannot use these keywords as identifiers in the program.
                    
2. Java Comments
   To comprehend any programming language, there are several kind of comments which are used. These comments are advantageous in the sense that they make the programmer feel convenient to grasp the logic of the program.
             
3. Java Data Types
   Java programming language is a language in which all the variables must be declared first and then to be used. That means to specify the name and the type of the variable.
          
4. Java Literals
   By literal we mean any number, text, or other information that represents a value. This means what you type is what you get.     
       
5. Java Classes
   In this section you will be introduced to some essential classes in Java like Exceptions, Basic I/O, Concurrency etc. 
               
6. Class, Objects and Methods in Java
   Whatever we can see in this world all the things are a object. And all the objects are categorized in a special group. That group is termed as a class.
      
7. Interface in Java
   In this section we will learn about Interface and Marker Interfaces in Java. This tutorial will clarify your questions "What is marker Interface?" and "Why to use Marker Interface?" and "difference between abstract class and the interface".
      
8. 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.