Using 'this' Keyword in Java: Explanation & Practice

Problem summary

Create a Rectangle class where constructor uses 'this' to distinguish parameters from fields.

Starter code

// Create Rectangle with:
// - int width, height
// - constructor using 'this'
// - int area() method

public class Main {
    public static void main(String[] args) {
        // Create rectangle 5x10 and print area
        // Output: Area: 50
    }
}

Expected output and test cases

• Calculate area

  Area: 50

Hints

1. 'this' refers to current object
2. this.field = parameter
3. Resolves naming conflicts

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