What is an if Statement?

The if statement is used to execute a block of code only when a specified condition is true.

If the condition is false, the block is skipped and the program continues normally.

Syntax:

if condition:
    # code to execute if condition is True

Example 1 (Condition True):

age = 18
if age >= 18:
    print("You are eligible to vote.")

Output:

You are eligible to vote.

Explanation:

Here, age is 18.

The if condition checks if age is 18 or more.

Since it is true, the message "You are eligible to vote." is printed.

Example 2 (Condition False):

marks = 30
if marks >= 40:
    print("You passed!")

Output:

(No output, as the condition is False)

Explanation:

Here, the value of marks is 30.

The if statement checks if marks are greater than or equal to 40.

Since 30 is less than 40, the condition is false.

Because the condition is false, the print statement does not run.

So, nothing is printed on the screen.

Important Notes:

  • Indentation is required in Python (usually 4 spaces).
  • Conditions are usually written using comparison operators.
  • If the condition is False, the block is ignored.

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