获取ArrayList的大小并遍历元素

import java.util.ArrayList;/** from 时 代 J a v a - nowjava.com**/

 

public class Main {

 

  public static void main(String[] args) {

    ArrayList arrayList = new ArrayList();

   

    arrayList.add("1");

    arrayList.add("2");

    arrayList.add("3");

 

    int totalElements = arrayList.size();/**来自 N o w J a v a . c o m - 时代Java**/

   

    System.out.println("ArrayList contains...");


    for(int index=0; index < totalElements; index++)

      System.out.println(arrayList.get(index));

   

  }

}