sprinklersystem.java

来自「think in java TIJ-3rd-edition-code.zip」· Java 代码 · 共 43 行

//: c06:SprinklerSystem.java
// Composition for code reuse.
import com.bruceeckel.simpletest.*;

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;
  WaterSource source;
  int i;
  float f;
  void print() {
    System.out.println("valve1 = " + valve1);
    System.out.println("valve2 = " + valve2);
    System.out.println("valve3 = " + valve3);
    System.out.println("valve4 = " + valve4);
    System.out.println("i = " + i);
    System.out.println("f = " + f);
    System.out.println("source = " + source);
  }
  public static void main(String[] args) {
    SimpleTest monitor =
      new SimpleTest("SprinklerSystem");
    SprinklerSystem x = new SprinklerSystem();
    x.print();
    monitor.expect(new String[] {
      "valve1 = null",
      "valve2 = null",
      "valve3 = null",
      "valve4 = null",
      "i = 0",
      "f = 0.0",
      "source = null"
    });
  }
} ///:~