到的ArrayList的元素复制到一个新的数组,代码如下 -
using System;
using System.Collections;
public class Demo {
public static void Main(){
ArrayList list = new ArrayList(10);
list.Add("A");
list.Add("B");
list.Add("C");
list.Add("D");
list.Add("E");
list.Add("F");
list.Add("G");
list.Add("H");
list.Add("I");
list.Add("J");
Console.WriteLine("ArrayList elements...");
foreach(string str in list){
Console.WriteLine(str);
}
Console.WriteLine("Array elements copied from ArrayList...");
object[] ob = list.ToArray();
foreach(string str in ob){
Console.WriteLine(str);
}
}
}输出结果
这将产生以下输出-
ArrayList elements... A B C D E F G H I J Array elements copied from ArrayList... A B C D E F G H I J
现在让我们来看另一个示例-
using System;
using System.Collections;
public class Demo {
public static void Main(){
ArrayList list = new ArrayList(10);
list.Add(100);
list.Add(200);
list.Add(300);
Console.WriteLine("ArrayList elements...");
foreach(int val in list){
Console.WriteLine(val);
}
Console.WriteLine("Array elements copied from ArrayList...");
object[] ob = list.ToArray();
foreach(int val in ob){
Console.WriteLine(val);
}
}
}输出结果
这将产生以下输出-
ArrayList elements... 100 200 300 Array elements copied from ArrayList... 100 200 300