Hey friends, welcome back to our 100 Days of Java journey!
Yesterday we learned about if else conditions and made a movie recommender.
But what if you have many choices? Writing ten if else statements would be messy. That’s where Switch Case comes in.
What is Switch Case
Think of it like a menu board.
If you press 1, you get an Espresso.
If you press 2, you get a Latte.
If you press 3, you get a Cappuccino.
And so on.
Instead of checking every condition one by one, Switch jumps directly to the right choice.
Coffee Machine Example in Java
Here’s our Coffee Vending Machine logic:
import java.util.Scanner;
public class CoffeeMachine {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Welcome to Java Coffee Machine!");
System.out.println("Press 1 for Espresso");
System.out.println("Press 2 for Latte");
System.out.println("Press 3 for Cappuccino");
System.out.println("Press 4 for Black Coffee");
System.out.print("Enter your choice: ");
int choice = sc.nextInt();
switch (choice) {
case 1:
System.out.println("Brewing your Espresso ☕...");
break;
case 2:
System.out.println("Brewing your Latte ☕🥛...");
break;
case 3:
System.out.println("Brewing your Cappuccino ☕🍫...");
break;
case 4:
System.out.println("Brewing your Black Coffee ☕🔥...");
break;
default:
System.out.println("Invalid choice! Please select 1-4.");
}
System.out.println("Enjoy your coffee! 🚀");
}
}
Example Run
Welcome to Java Coffee Machine!
Press 1 for Espresso
Press 2 for Latte
Press 3 for Cappuccino
Press 4 for Black Coffee
Enter your choice: 3
Brewing your Cappuccino ☕🍫...
Enjoy your coffee! 🚀
Avengers Example
Think of it like Nick Fury choosing Avengers:
Case 1 → Call Iron Man
Case 2 → Call Captain America
Case 3 → Call Thor
Default → Call Hawkeye (poor guy 😂)
That’s how Switch Case works; pick one action out of many.
Wrap Up
Today you learned:
- Why Switch Case is better than multiple if else statements for many options
- How to use Switch in a real program
- Built a fun Coffee Machine project
Tomorrow we’ll dive into loops, the secret power that lets your code repeat tasks automatically.
References
You can also check out:
- Learn Java Basics (Day 1) – Install JDK and Run Your First Program
- Learn Java Variables and Data Types (Day 2): Java for Beginners
- Day 3: Java Variables and Data Types Explained with Real-Life Examples
- Day 4 Java Tutorial: Scanner Input + Build a Basic Calculator
- Day 5 – Operators and Expressions in Java with Grocery Price Calculator
- Day 6 – If Else and Conditions in Java with Movie Recommendations
- Day 7 : Java Strings (Text Magic in Java)
- Beginner’s Guide to Web Development
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