Python

1: Print Function
2: Escape Sequence
3: Comments
4: Escape Sequence as Normal Text
5: Print Emoji
6: Python as Calculator
7: Strings Concatenation
8: Input
9: int function
10: Variables
11: String Formatting
12: String Indexing
13: String Slicing
14: Step Argument
15: Some useful function and methods
16: Strip Method
17: Find and Replace method
18: Center method
19: If Statement
20: If else statement
21: Nested if-else Statement
22: if-elif-else statement
23: while loop
23.1: Example 1 while loop
23.2: Example 2 while loop
23.3: Example 3 while loop
24: Infinite loop
25: for loop
25.1: Example 1 for loop
26: break and continue statement
27: for loop with string

Chapter 20: If else statement

If we want to evaluate a condition, and it is true, the if block will execute. If the condition is false, the else block will run instead.
Note: The else statement must come after an if statement and cannot be used on its own.

age = int(input("Enter your age: "))
if age>=18:
    print('You can vote.')
else:
    print("You can't vote.")
Output 1:
Enter your age: 14
You can't vote.
Output 2:
Enter your age: 19
You can vote.