mouselist.java

来自「think in java TIJ-3rd-edition-code.zip」· Java 代码 · 共 14 行

//: c09:MouseList.java
// A type-conscious ArrayList.
import java.util.*;

public class MouseList {
  private ArrayList list = new ArrayList();
  public void add(Mouse m) {
    list.add(m);
  }
  public Mouse get(int index) {
    return (Mouse)list.get(index);
  }
  public int size() { return list.size(); }
} ///:~