variables
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  • What you'll learn
    • ✓C++ is a popular programming language.
    ✓C++ is used to create computer programs, and is one of the most used language in game development.
    ✓A text editor, like Notepad, to write C++ code
    ✓A compiler, like GCC, to translate the C++ code into a language that the computer will understand
    ✓An IDE (Integrated Development Environment) is used to edit AND compile the code.
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  • C++ is a cross-platform language that can be used to create high-performance applications. C++ was developed by Bjarne Stroustrup, as an extension to the C language. C++ gives programmers a high level of control over system resources and memory. The language was updated 4 major times in 2011, 2014, 2017, and 2020 to C++11, C++14, C++17, C++20.
  • Variables are containers for storing data values. In C++, there are different types of variables (defined with different keywords), for example: int - stores integers (whole numbers), without decimals, such as 123 or -123 double - stores floating point numbers, with decimals, such as 19.99 or -19.99 char - stores single characters, such as 'a' or 'B'. Char values are surrounded by single quotes string - stores text, such as "Hello World". String values are surrounded by double quotes bool - stores values with two states: true or false
  • All C++ variables must be identified with unique names. These unique names are called identifiers. Identifiers can be short names (like x and y) or more descriptive names (age, sum, totalVolume). Note: It is recommended to use descriptive names in order to create understandable and maintainable code:
  • When you do not want others (or yourself) to change existing variable values, use the const keyword (this will declare the variable as "constant", which means unchangeable and read-only): Example
  • Single-line Comments Single-line comments start with two forward slashes (//). Any text between // and the end of the line is ignored by the compiler (will not be executed). This example uses a single-line comment before a line of code:
  • Single-line Comments
  • Single-line Comments
  • Single-line Comments
  • Single-line Comments Single-line comments start with two forward slashes (//). Any text between // and the end of the line is ignored by the compiler (will not be executed). This example uses a single-line comment before a line of code:
  • Single-line Comments

Requirement

Variables in C++ is a name given to a memory location. It is the basic unit of storage in a program. The value stored in a variable can be changed during program execution. A variable is only a name given to a memory location, all the operations done on the variable effects that memory location. In C++, all the variables must be declared before use.

Are you an absolute beginner looking forward to kickstart your journey in the programming domain. Coding can be hard skill learn to learn for many but no more. Welcome to C++ Programming Essentials, the most fundamental course that every aspiring programmer should take to kickstart their journey in the world of programming. The course teaches you the fundamental building blocks of programming and builds a logical thinking mindset using C++ as our programming language. Many concepts taught in the course are also relevant to other languages like Java, Python, JavaScript etc with few changes in the coding syntax. You will understand the basic concepts and techniques to break down a given problem into smaller parts by drawing flowcharts, write pseudocode, and then diving deep into C++ topics like - variables, datatypes, flow control using branching & loops, functions, arrays, character arrays & strings, recursion, bitmasking & OOPs concepts. Course Features HD Videos Intuitive Explanations Beginner Friendly Teaching Tested Industry vetted curriculum Assignments & Q-A Support Certificate of Completion
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MIS Online computer course

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