Practice›Java Fundamentals›Module 8. Interfaces & Abstract Classes›8.1 Interfaces

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8.1 Interfaces — implement Square

Total: 0 / 3 pts

Practice mode — check each part and get hints as you go.

Task

Write the class Square so that it implements the Shape interface. It must supply both methods the contract demands: area() returning the side squared, and name() returning "Square".

The program prints Square and then 9.0.

Your solution

interface Shape {
    double area();
    String name();
}

class Square implements Shape {
    // a side field, a constructor, then area() and name()

}

public class Main {
    public static void main(String[] args) {
        Square s = new Square(3);
        System.out.println(s.name());
        System.out.println(s.area());
    }
}

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