parcel10.java

java包和接口部分的课件

//: c08:Parcel10.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// Static inner classes.

public class Parcel10 {
  private static class PContents 
  implements Contents {
    private int i = 11;
    public int value() { return i; }
  }
  protected static class PDestination
      implements Destination {
    private String label;
    private PDestination(String whereTo) {
      label = whereTo;
    }
    public String readLabel() { return label; }
    // Static inner classes can contain 
    // other static elements:
    public static void f() {}
    static int x = 10;
    static class AnotherLevel {
      public static void f() {}
      static int x = 10;
    }
  }
  public static Destination dest(String s) {
    return new PDestination(s);
  }
  public static Contents cont() {
    return new PContents();
  }
  public static void main(String[] args) {
    Contents c = cont();
    Destination d = dest("Tanzania");
  }
} ///:~