JAVA Free Section Starter Challenge 25 min

3. Modular Methods & Parameter Passing

Overview: Define reusable static and instance methods with typed return values.

Concept & Syntax Guide

Methods encapsulate reusable algorithms. Declaring `public static double applyTax(double price)` enforces strict input and output contracts.

Hands-On Practice Exercise

Build a Tax Calculation Method

Write a method `public static int addGST(int price)` that adds 18% to the price and returns the rounded integer.

Target Output: Price with GST: 1180

Need a hint? Click here to reveal

Hint: Check syntax carefully and make sure your code contains: Price with GST: 1180

JAVA Code Editor

1
2
3
4
5
6
7
8
9
10

public class Main {
    public static int addGST(int price) {
        return (int)(price * 1.18);
    }
    public static void main(String[] args) {
        System.out.println("Price with GST: " + addGST(1000));
    }
}