#12 If Else in JAVA | Skyhighes | Lecture 12

Here's a visual guide to if-else statements in Java, empowering you to make decisions in your code:

Imagine your code as a seasoned adventurer, exploring different paths based on conditions it encounters. The if and else statements are its trusty compass and map, guiding it through these choices.

Here's how they work:

1. The if Statement:

Checks a condition: Evaluates whether a certain statement is true or false.
Executes code selectively: If the condition is true, the code block within the if statement runs.
2. The else Statement:

The alternative path: Offers an alternative code block to execute if the if condition is false.
Ensures a choice is made: Guarantees that one of the code blocks will run, even if the if condition isn't met.
Example:

Java
int age = 25;

if (age >= 18) {
System.out.println("You are eligible to vote.");
} else {
System.out.println("You are not yet eligible to vote.");
}
Use code with caution. Learn more
Common Use Cases:

Age verification: Checking if a user is old enough to access certain content.
Login validation: Ensuring correct username and password combinations.
Data filtering: Displaying different messages based on user input or data values.
Game logic: Implementing branching storylines and game mechanics.
Key Points:

Conditions within if statements typically involve relational operators (like ==, !=, <, >, <=, >=) and logical operators (like &&, ||, !).
You can create more complex decision trees using multiple else if statements to handle multiple possible conditions.
Use proper indentation to make your code more readable and easier to understand.
Remember: if and else statements are fundamental building blocks for creating programs that can adapt and make intelligent choices. Master them, and you'll unlock a world of possibilities in your Java adventures!