Variables
What are Variables?
- Variables are containers for storing data in a program
- They hold values that can change while the program runs
Why are Variables Needed?
- Store Information: Variables allow programs to keep and use data, like names, numbers, or results of calculations
- Make Programs Flexible: By changing the value of a variable, the program can adapt to different inputs or situations
- Simplify Reuse: Variables let you use the same data multiple times without retyping it
Python Examples
String
name = "Alice" print(name)
Integer
age = 25 print(age)
Real / Float
pi = 3.14 print(pi)
Reusing a Variable
message = "Bye" print(message) print(message, message)
Changing a Variable's Value
score = 10 score = 20 print(score)