32 lines
769 B
Java
32 lines
769 B
Java
// polymorphism/Shapes.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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// Polymorphism in Java.
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import polymorphism.shape.*;
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public class Shapes {
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private static RandomShapeGenerator gen =
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new RandomShapeGenerator();
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public static void main(String[] args) {
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Shape[] s = new Shape[9];
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// Fill up the array with shapes:
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for(int i = 0; i < s.length; i++)
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s[i] = gen.get();
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// Make polymorphic method calls:
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for(Shape shp : s)
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shp.draw();
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}
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}
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/* Output:
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Triangle.draw()
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Triangle.draw()
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Square.draw()
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Triangle.draw()
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Square.draw()
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Triangle.draw()
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Square.draw()
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Triangle.draw()
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Circle.draw()
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*/
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