From df1501770184c553793316c1dc2f05b1395389a5 Mon Sep 17 00:00:00 2001
From: Nirosha Jayasundara
 <32589901+niroshajayasundara@users.noreply.github.com>
Date: Wed, 30 Oct 2019 20:50:08 +0530
Subject: [PATCH] Update README.md

---
 2. Basic Syntax/README.md | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/2. Basic Syntax/README.md b/2. Basic Syntax/README.md
index 0abcfb1..b4d2f7c 100644
--- a/2. Basic Syntax/README.md	
+++ b/2. Basic Syntax/README.md	
@@ -32,5 +32,22 @@ Hello World
 * <b>Program File Name</b> - Name of the program file should exactly match the class name.
 <br><b>Example:</b> Assume 'MyFirstJavaProgram' is the class name. Then the file should be saved as 'MyFirstJavaProgram.java'
 * <b>public static void main(String args[])/b> - Java program processing starts from the main() method which is a mandatory part of every Java program.
+  
+### Java Identifiers
+All Java components require names. Names used for classes, variables, and methods are called identifiers.
 
-Source: [tutorialspoint](https://www.tutorialspoint.com/java/java_basic_syntax.htm)2
\ No newline at end of file
+In Java, there are several points to remember about identifiers. They are as follows −
+
+* All identifiers should begin with a letter (A to Z or a to z), currency character ($) or an underscore (_).
+
+* After the first character, identifiers can have any combination of characters.
+
+* A key word cannot be used as an identifier.
+
+* Most importantly, identifiers are case sensitive.
+
+* Examples of legal identifiers: age, $salary, _value, __1_value.
+
+* Examples of illegal identifiers: 123abc, -salary.
+
+Source: [tutorialspoint](https://www.tutorialspoint.com/java/java_basic_syntax.htm)2