Java Basic Syntax

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  • Case Sensitivity − Java is case sensitive, which means identifier HelloWorld and helloworld would have different meaning in Java.
  • Class Names − For all class names the first letter should be in Upper Case. If several words are used to form a name of the class, each inner word’s first letter should be in Upper Case. Example: class name = JavaClassName
  • Method Names − All method names should start with a Lower Case letter. If several words are used to form the name of the method, then each inner word’s first letter should be in Upper Case. Example: method name = methodName()
  • Program File Name − Name of the program file should exactly match the class name.When saving the file. Example: class name = ‘JavaClassName’. Then the file should be saved as ‘JavaClassName’
  • public static void main(String args[]) − Java program processing starts from the main() method which is a mandatory part of every Java program.


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