OnJava8-Examples/polymorphism/shape/RandomShapeGenerator.java

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2015-06-15 17:47:35 -07:00
//: polymorphism/shape/RandomShapeGenerator.java
// <20>2015 MindView LLC: see Copyright.txt
// A "factory" that randomly creates shapes.
package polymorphism.shape;
import java.util.*;
public class RandomShapeGenerator {
private Random rand = new Random(47);
public Shape next() {
switch(rand.nextInt(3)) {
default:
case 0: return new Circle();
case 1: return new Square();
case 2: return new Triangle();
}
}
} ///:~