如何在Java中使用迭代器获取元素？
让我们首先创建一个List并添加元素-
List<String>list = Arrays.asList(new String[] { "P", "Q", "R", "S", "T", "U", "V", "W" });现在，使用Iterator来获取每个元素-
Iterator<String>i = list.iterator();
显示元素-
while (i.hasNext()) {
System.out.println(i.next());
}示例
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
public class Demo {
public static void main(String[] a) {
List<String>list = Arrays.asList(new String[] { "P", "Q", "R", "S", "T", "U", "V", "W" });
Iterator<String>i = list.iterator();
System.out.println("Displaying elements...");
while (i.hasNext()) {
System.out.println(i.next());
}
}
}输出结果
Displaying elements... P Q R S T U V W