C++

1. Design pattern

2. Data structure

2.1. pointer

2.2. Struct

2.3. Static

3. Algorthmes

4. Basics

4.1. Data type

4.1.1. Numaric

4.1.1.1. int

4.1.1.2. float

4.1.1.3. double

4.1.2. Character

4.1.2.1. string

4.1.2.2. char

4.2. Repetion statment

4.2.1. For , while , do while

4.3. Selection statmant

4.3.1. If , Switch

4.4. Funcations

4.5. Arrays

5. object-oriented programming

5.1. Declare Classes

5.2. Inheritance

5.3. Polymorphism

5.4. Friend function