Day 3: Understanding Variables and Constants – The Building Blocks of C++

Variable Declaration and Initialization

• The syntax for declaring variables in C++ is straightforward, with examples provided for integer types.

• The distinction between declaring a variable and initializing it is clarified, emphasizing that variables can be declared without immediate use.

Constants in C++

• The concept of constants is introduced, explaining that certain values should remain unchanged throughout the program.

• The use of the const keyword is demonstrated, indicating how it prevents modification of a variable once set.