beatles.java

Java 程序设计教程（第五版）EXAMPLESchap07源码

//********************************************************************
//  Beatles.java       Author: Lewis/Loftus
//
//  Demonstrates the use of a ArrayList object.
//********************************************************************

import java.util.ArrayList;

public class Beatles
{
   //-----------------------------------------------------------------
   //  Stores and modifies a list of band members.
   //-----------------------------------------------------------------
   public static void main (String[] args)
   {
      ArrayList band = new ArrayList();

      band.add ("Paul");
      band.add ("Pete");
      band.add ("John");
      band.add ("George");

      System.out.println (band);

      int location = band.indexOf ("Pete");
      band.remove (location);

      System.out.println (band);
      System.out.println ("At index 1: " + band.get(1));

      band.add (2, "Ringo");

      System.out.println (band);
      System.out.println ("Size of the band: " + band.size());
   }
}