map转成list

Java代码如下：

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

public class MapList {
	public static void main(String args[]) {
		Map<String, String> map = new HashMap<String, String>();
		map.put("a", "A");
		map.put("b", "B");
		map.put("c", "C");
		List<String> Key = new ArrayList<String>();
		List<String> Value = new ArrayList<String>();
		Iterator<String> it = map.keySet().iterator();
		while (it.hasNext()) {
			String key = it.next().toString();
			Key.add(key);
			Value.add(map.get(key));
		}
		for (int i = 0; i < Key.size(); i++) {
			System.out.println("Key:" + Key.get(i) + " " + "Value:"
					+ Value.get(i));

		}
	}
}

输出结果：

Key:b Value:B
Key:c Value:C
Key:a Value:A