linking all the files to README.md and rearrange all files in systematic order

Author: RahulSinghParmar

.idea/modules.xml

@@ -5,112 +5,68 @@
 
 ## Content
 
-### [Introduction To Java](https://github.com/RahulSinghParmar/JAVA-Core/blob/04dac1abf303cebd25808b7ba3c278d39510bad7/Introduction%20To%20Java)
-- [x] [Example](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Java/src/Example.java)
-- [x] [HelloWorld](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Java/src/HelloWorld.java)
-
-### [Introduction To Programming](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming)
-- [x] [Variable Creation](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Variable_creation.java)
-- [x] [Variable Naming rules](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Variable_Naming_Rules.java)
-- [x] [literals](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/literals.java)
-- [x] [Data Types](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/DataType.java)
-- [x] [Expression](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Expressions.java)
-- [x] [Input Methods](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Input.java)
-- [Operators](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators)
-  - [x] [Arithmetic Operations](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Arithmetic_Operator.java)
-  - [x] [Assignment Operators](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Assignment_Operator.java)
-  - [x] [Bitwise Operations](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Bitwise_Operator.java)
-  - [Unary Operations](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Unary_Operators)
-    - [x] [Pre Increment operator](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Unary_Operators/Pre_Increment_Operator.java)
-    - [x] [Pre Decrement operator](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Unary_Operators/Pre_Decrement_Operator.java)
-    - [x] [Post Increment operator](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Unary_Operators/Post_Increment_Operator.java)
-    - [x] [Post Decrement operator](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Unary_Operators/Post_Decrement_Operator.java)
-  - [x] [InstanceOf Operations](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/InstanceOf_Operator.java)
-  - [x] [logical operations](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/logical_Operator.java)
-  - [x] [Relational Operations](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Relational_Operator.java)
-  - [x] [Shifting Operations](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Shift_Operator.java)
-  - [x] [Ternary Operators](https://github.com/RahulSinghParmar/JAVA-Core/blob/0cc681f4f948828098d09806d2f06f0604153dcb/Introduction%20To%20Programming/src/Operators/Ternary_Operator.java)
-
-### [Java Flow Control](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control)
+### [Introduction To Java](Introduction_To_Java)
+
+- [x] [Example](Introduction_To_Java/src/Example.java)
+- [x] [HelloWorld](Introduction_To_Java/src/HelloWorld.java)
+
+### [Introduction To Programming](Introduction_To_Programming)
+- [ ] [Programs](Introduction_To_Programming/src/Programs)
+- [x] [Variable Creation](Introduction_To_Programming/src/Variable_creation.java)
+- [x] [Variable Naming rules](Introduction_To_Programming/src/Variable_Naming_Rules.java)
+- [x] [Variable Rules](Introduction_To_Programming/src/Variable_Naming_Rules.java)
+- [x] [literals](Introduction_To_Programming/src/literals.java)
+- [x] [Data Types](Introduction_To_Programming/src/DataType.java)
+- [x] [Expression](Introduction_To_Programming/src/Expressions.java)
+- [x] [Input Methods](Introduction_To_Programming/src/Input.java)
+- [Operators](Introduction_To_Programming/src/Operators)
+  - [x] [Arithmetic Operations](Introduction_To_Programming/src/Operators/Arithmetic_Operator.java)
+  - [x] [Assignment Operators](Introduction_To_Programming/src/Operators/Assignment_Operator.java)
+  - [x] [Bitwise Operations](Introduction_To_Programming/src/Operators/Bitwise_Operator.java)
+  - [Unary Operations](Introduction_To_Programming/src/Operators/Unary_Operators)
+    - [x] [Pre Increment operator](Introduction_To_Programming/src/Operators/Unary_Operators/Pre_Increment_Operator.java)
+    - [x] [Pre Decrement operator](Introduction_To_Programming/src/Operators/Unary_Operators/Pre_Decrement_Operator.java)
+    - [x] [Post Increment operator](Introduction_To_Programming/src/Operators/Unary_Operators/Post_Increment_Operator.java)
+    - [x] [Post Decrement operator](Introduction_To_Programming/src/Operators/Unary_Operators/Post_Decrement_Operator.java)
+  - [x] [InstanceOf Operations](Introduction_To_Programming/src/Operators/InstanceOf_Operator.java)
+  - [x] [logical operations](Introduction_To_Programming/src/Operators/logical_Operator.java)
+  - [x] [Relational Operations](Introduction_To_Programming/src/Operators/Relational_Operator.java)
+  - [x] [Shifting Operations](Introduction_To_Programming/src/Operators/Shift_Operator.java)
+  - [x] [Ternary Operators](Introduction_To_Programming/src/Operators/Ternary_Operator.java)
+
+### [Java Flow Control](Java_Flow_Control)
+- [ ] [Programs](Java_Flow_Control/src/Programs)
 - [x] [if](Java_Flow_Control/src/If.java)
-- [x] [if else](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/If_else.java)
-- [x] [if else if ladder](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/ladder_if_else_if.java)
-- [x] [if else nested](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Nested_If_else.java)
-- [x] [Switch case](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Switch_Case.java)
-- [loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Loop)
-  - [x] [for loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Loop/For_Loop.java)
-  - [x] [for each loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Loop/For_each_loop.java)
-  - [x] [while loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Loop/While_loop.java)
-  - [x] [do while loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Loop/Do_While_loop.java)
-  - [x] [infinite loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Loop/Infinite_for_Loop.java)
-  - [x] [for Loop vs For each loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Loop/for_loop_VS_For_each_loop.java)
-- [x] [break statement](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Break.java)
-- [x] [break nested loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Break_nested_loop.java)
-- [x] [label break Loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Label_break_statement.java)
-- [x] [continue statement](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Continue.java)
-- [x] [continue nested Loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Continue_nested_loop.java)
-- [x] [label continue loop](https://github.com/RahulSinghParmar/JAVA-Core/blob/a7149e446566272ab4c1b0501688cea06d3cdcac/Java%20Flow%20Control/src/Label_continue_statement.java)
-
-
-
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-    - xsx
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- 
-- [x] [test](./test.java)
-
-
-
-
-
-
-### Section 1
-- Introduction to programming 
-- Introduction to java 
-- JDK installation 
-- Keywords, Identifiers, variables 
-- Operators 
-- Method/Functions 
-- Flow Control Statements 
-- Arrays 
-- Strings 
-- Interactive programs in java using Scanner
-
-### Section 2
-
-#### Object Oriented Programming System
-- Classes and Objects
-- Object creation
-- Reference variable
-- Global and local variables
-- Constructors
-- Aggregation
-- Composition
-- Inheritance 
-- Method Overloading
-- Method Overriding
-- Abstract classes
-- Interfaces
-- Typecasting
-- JVM architecture
-- Polymorphism
-- Abstraction
-- Java packages
-- Access Specifies
-
-### Section 3
+- [x] [if else](Java_Flow_Control/src/If_else.java)
+- [x] [if else if ladder](Java_Flow_Control/src/ladder_if_else_if.java)
+- [x] [if else nested](Java_Flow_Control/src/Nested_If_else.java)
+- [x] [Switch case](Java_Flow_Control/src/Switch_Case.java)
+- [loop](Java_Flow_Control/src/Loop)
+  - [x] [for loop](Java_Flow_Control/src/Loop/For_Loop.java)
+  - [x] [for each loop](Java_Flow_Control/src/Loop/For_each_loop.java)
+  - [x] [while loop](Java_Flow_Control/src/Loop/While_loop.java)
+  - [x] [do while loop](Java_Flow_Control/src/Loop/Do_While_loop.java)
+  - [x] [infinite loop](Java_Flow_Control/src/Loop/Infinite_for_Loop.java)
+  - [x] [for Loop vs For each loop](Java_Flow_Control/src/Loop/for_loop_VS_For_each_loop.java)
+- [x] [break statement](Java_Flow_Control/src/Break.java)
+- [x] [break nested loop](Java_Flow_Control/src/Break_nested_loop.java)
+- [x] [label break Loop](Java_Flow_Control/src/Label_break_statement.java)
+- [x] [continue statement](Java_Flow_Control/src/Continue.java)
+- [x] [continue nested Loop](Java_Flow_Control/src/Continue_nested_loop.java)
+- [x] [label continue loop](Java_Flow_Control/src/Label_continue_statement.java)
+
+### [Java arrays](Arrays)
+- [ ] [Programs](Arrays/src/programs)
+- [x] [Arrays](Arrays/src/Arrays.java) 
+- [x] [Multidimensional Array](Arrays/src/Multidimensional_Arrays.java)
+
+
+### [OOP 1]()
+- [ ] [Programs](OOP_1/src/Programs)
+
+### [OOP 2]()
+- [ ] [Programs](OOP_2/src/Programs)
+
+### [OOP 3]()
+- [ ] [Programs](OOP_3/src/Programs)
 
-####  Java Built-in packages and API
-- Overview of java API
-- Object class
-- String, String Buffer and String Builder
-- Exception Handling
-- Threads and multithreading
-- Wrapper Classes
-- Data Structures
-- JAVA Collection Frameworks
-- File Handling
-- Serialization
-- Garbage Collector
-- Encapsulation