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Java If Statement

The if statement in Java is used to execute a block of code if a specified condition is true. It's a fundamental control structure that allows your program to make decisions.

Key Topics

1. Syntax

The basic syntax of an if statement is:

if (condition) {
    // Code to execute if condition is true
}

2. Example

Here's a simple example of using an if statement:

public class IfExample {
    public static void main(String[] args) {
        int number = 10;
        if (number > 5) {
            System.out.println("The number is greater than 5.");
        }
    }
}

3. Nested If Statements

You can place an if statement inside another if statement to create a nested structure.

if (condition1) {
    // Executes if condition1 is true
    if (condition2) {
        // Executes if condition2 is true
    }
}

Key Takeaways

  • The if statement executes code only if a specified condition is true.
  • Conditions must result in a boolean value (true or false).
  • Nested if statements allow for more complex decision-making.
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