20 lines
583 B
Java
20 lines
583 B
Java
// polymorphism/shape/RandomShapeGenerator.java
|
|
// ©2016 MindView LLC: see Copyright.txt
|
|
// We make no guarantees that this code is fit for any purpose.
|
|
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
|
|
// A "factory" that randomly creates shapes.
|
|
package polymorphism.shape;
|
|
import java.util.*;
|
|
|
|
public class RandomShapeGenerator {
|
|
private Random rand = new Random(47);
|
|
public Shape get() {
|
|
switch(rand.nextInt(3)) {
|
|
default:
|
|
case 0: return new Circle();
|
|
case 1: return new Square();
|
|
case 2: return new Triangle();
|
|
}
|
|
}
|
|
}
|