pair.java

程序练习中包括书中实例程序代码和练习中要用到的代码,是压缩文件

package questions.c4;
public class Pair {
   private Object item1, item2;
   public Pair( Object o1, Object o2 ) {
      item1 = o1;
      item2 = o2;
   }
   public String toString() {
      return item1.toString() + ", "
             + item2.toString();
   }
   // your main method here
}