Lets learn some of the basic and critical rules that we should know as JAVA developers.

Being aware of a single shortcoming within yourself is far more useful than being aware of a thousand in someone else.

1. Name of Class should start with uppercase letter.
Example:- 
MyFirstClass rather than myfirstclass

2.Methods and variables of class should start with lower case (camel case)
Example:-
myMethod is valid rather than MyMethod

3.Name of Class, variables and methods (all known as identifier) should always begin with alphabet or underscore.
Example:-
_myMethod is valid rather than 12myMethod

Note:- Java code will still work if we dont follow the above rules but its not recommended.

4.In built keywords of Java cannot be used as name of identifiers.
Example:-
while is invalid variable name as its defined keyword in java

5.All constant values should be defined in Uppercase letter.
Example:-
public static final String UFTHELP = “Learn Technology”;

6.Each line of code should end with semicolon (;)
Example:-
MyClass obj = new MyClass();

7.Most important, JAVA is case sensitive.
Example all the below variables are different for java:-
firstName, FIRSTNAME, FirstName

Learn Java

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