jianglilili / jianglilili/guodegang.github.io

for循环遍历ArrayList

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Description

- 在使用集合类时,不仅要了解容器是如何保存元素的,而且要知道如何取出元素。本范例将使用普通for循环遍历ArrayList,从中取出所有序号为奇数的元素。

- 新建GeneralForDemo类,在类中创建一个ArrayList集合为其指定泛型为Integer类型,并为其添加10个元素,利用for循环遍历ArrayList集合,输出列表中序号为奇数的元素。代码如下:

```
public class GeneralForDemo
{
public static void main(String[] args)
{
List list=new ArrayList();
for (int i=0;i<10;i++)
{
list.add(i);
}
System.out.println("列表中的元素是:"+list);
System.out.println("列表中的奇数元素是:");
for (int i=1;i

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