CEN206 Object-Oriented Programming
Java Interface Practical Example
class Triangle implements Polygon {
private int a, b, c;
private double s, area;
Triangle(int a, int b, int c) {
this.a = a;
this.b = b;
this.c = c;
s = 0;
}
public void getArea() {
s = (double) (a + b + c)/2;
area = Math.sqrt(s*(s-a)*(s-b)*(s-c));
System.out.println("Area: " + area);
}
}