arraylistdemo.java

java编程代码

import java.util.ArrayList;
import java.util.Scanner;

public class ArrayListDemo
{
   public static void main(String[] args)
   {
      ArrayList<String> toDoList = new ArrayList<String>(20);
      System.out.println(
                    "Enter list entries, when prompted.");
      boolean done = false;
      String next = null;
      String answer;
      Scanner keyboard = new Scanner(System.in);

      while (! done)
      {
          System.out.println("Input an entry:");
          next = keyboard.nextLine( );
          toDoList.add(next);

          System.out.print("More items for the list? ");
          answer = keyboard.nextLine( );
          if (!(answer.equalsIgnoreCase("yes")))
                done = true;
      }

      System.out.println("The list contains:");
      for (String entry : toDoList)
           System.out.println(entry);
   }
}