package Nov2016;
import java.util.HashMap;
import java.util.Map;
public class Ques1101 {
public static void main(String[] args) {
HashMap<Integer, Integer> map = new HashMap<Integer, Integer>();
for (int i = 0; i < 100; i++) {
map.put(i, i);
}
// 遍歷1
for (Integer key : map.keySet()) {
Integer value = map.get(key);
System.out.println(key+"---"+value);
}
// 遍歷2
for (Map.Entry<Integer, Integer> entry : map.entrySet()) {
Integer key = entry.getKey();
Integer value = entry.getValue();
System.out.println(key+"---"+value);
}
}
}
今日問題:
請問主程序輸出結果是?(點擊以下“【Java每日一題】20161101”查看20161031問題解析)
題目原發布於公眾號、簡書:【Java每日一題】20161101,【Java每日一題】20161101
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