JAVA笔试:List的遍历

xiaoxiao2021-02-28  55

import java.util.ArrayList; import java.util.Iterator; import java.util.List; /** * @author 欢迎加入Java技术交流群:646766275 * */ public class Test { static List list = new ArrayList(); /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub list.add("a"); list.add("b"); list.add("c"); // 插入代码 } }

下面可以输出“abc”的代码有 () A.

for (Iterator iter = list.iterator(); iter.hasNext();) System.out.print(iter.next());

B.

for (Iterator iter : list) System.out.print(iter.next());

C.

for (Object o : list.iterator()) System.out.print(o);

D.

for (Object o : list) System.out.print(o);

正确答案:AD

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