Mega Code Archive
Composition for code reuse
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// : c06:SprinklerSystem.java
// Composition for code reuse.
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
class WaterSource {
private String s;
WaterSource() {
System.out.println("WaterSource()");
s = new String("Constructed");
}
public String toString() {
return s;
}
}
public class SprinklerSystem {
private String valve1, valve2, valve3, valve4;
private WaterSource source;
private int i;
private float f;
public String toString() {
return "valve1 = " + valve1 + "\n" + "valve2 = " + valve2 + "\n"
+ "valve3 = " + valve3 + "\n" + "valve4 = " + valve4 + "\n"
+ "i = " + i + "\n" + "f = " + f + "\n" + "source = " + source;
}
public static void main(String[] args) {
SprinklerSystem sprinklers = new SprinklerSystem();
System.out.println(sprinklers);
}
} ///:~
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