添加我有一個關於下面的代碼有些懷疑名單在Java中獲得價值:如何從自散地圖
public static void main(String[] args) {
HashMap<String,String> hMap = new HashMap<String,String>();
System.out.println("Size of HashMap : " + hMap.size());
hMap.put("1", "One");
hMap.put("2", "Two");
hMap.put("3", "Three");
System.out.println("Size of HashMap after addition : " + hMap.size());
// remove one element from HashMap
ArrayList<HashMap<String, String>> list;
list = new ArrayList<HashMap<String, String>>();
list.add(hMap);
System.out.println(""+hMap.get(1));
System.out.println(""+list.size());
//if(list.size()<1)
System.out.println(""+list.get(0));
}
輸出
Size of HashMap : 0
Size of HashMap after addition : 3
null
1
{3=Three, 2=Two, 1=One}
Myquestion
如何從列表中獲取每個值?
你是什麼讓每一個意思列表中的值? – NewUser 2014-10-31 06:32:51