added access modifier

Author: connectaman

.idea/workspace.xml

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+### Access Modifiers in Java
+
+There are two types of modifiers in Java: access modifiers and non-access modifiers.
+
+The access modifiers in Java specifies the accessibility or scope of a field, method, constructor, or class. We can change the access level of fields, constructors, methods, and class by applying the access modifier on it.
+
+There are four types of Java access modifiers:
+
+   - Private: The access level of a private modifier is only within the class. It cannot be accessed from outside the class.
+   - Default: The access level of a default modifier is only within the package. It cannot be accessed from outside the package. If you do not specify any access level, it will be the default.
+   - Protected: The access level of a protected modifier is within the package and outside the package through child class. If you do not make the child class, it cannot be accessed from outside the package.
+   - Public: The access level of a public modifier is everywhere. It can be accessed from within the class, outside the class, within the package and outside the package.
+
+There are many non-access modifiers, such as static, abstract, synchronized, native, volatile, transient, etc. Here, we are going to learn the access modifiers only.
+
+##### Understanding Java Access Modifiers
+
+|Access Modifier	|within class |	within package|	outside package by subclass only	|outside package|
+|------|--------|------|---------|----------|
+|Private|	Y|	N|	N|	N|
+|Default	|Y|	Y	|N	|N|
+|Protected|	Y	|Y|	Y|	N|
+|Public|	Y|	Y|Y	|Y|
+
+-------
+
+
+
+

src/Encapsulation/AcessModifier.md

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+### Java Package
+
+A java package is a group of similar types of classes, interfaces and sub-packages.
+
+Package in java can be categorized in two form, built-in package and user-defined package.
+
+There are many built-in packages such as java, lang, awt, javax, swing, net, io, util, sql etc.
+
+Here, we will have the detailed learning of creating and using user-defined packages. 
+
+##### Advantage of Java Package
+
+1) Java package is used to categorize the classes and interfaces so that they can be easily maintained.
+
+2) Java package provides access protection.
+
+3) Java package removes naming collision.
+
+![](https://static.javatpoint.com/images/package.JPG)
+
+### Simple example of java package
+
+```java
+package mypack;  
+public class Simple{  
+ public static void main(String args[]){  
+    System.out.println("Welcome to package");  
+   }  
+}  
+```
+
+-----
+
+##### How to access package from another package?
+
+There are three ways to access the package from outside the package.
+
+   1- import package.*;
+   
+   2- import package.classname;
+   
+   3- fully qualified name.
+
+
+
+-----
+
+