restrictedcomparablepets.java

来自「Thinking in JAVA第四版源代码」· Java 代码 · 共 13 行

//: generics/RestrictedComparablePets.java

class Hamster extends ComparablePet
implements Comparable<ComparablePet> {
  public int compareTo(ComparablePet arg) { return 0; }
}

// Or just:

class Gecko extends ComparablePet {
  public int compareTo(ComparablePet arg) { return 0; }
} ///:~