entrySet怎么用的。。。
请求地址:http://localhost:8080/yhrecord/projman/test.jsp?name=sky&age=12
<br>
Map<String,String> map=request.getParameterMap();<br>
	Set<Map.Entry<String, String>> entry=map.entrySet();<br>
	for(Map.Entry<String,String> entry_:entry){<br>
		System.out.println(entry_.getKey().toString()+":"+entry_.getValue().toString());<br>
	}<br>
System.out.println(entry_.getKey().toString()+”:”+entry_.getValue().toString());
这行会报:java.lang.ClassCastException: [Ljava.lang.String; cannot be cast to java.lang.String
请问怎么破。。。
——解决方案——————–
import java.util.HashMap;<br>
import java.util.Map;<br>
import java.util.Set;<br><br>
public class Test17 {<br><br>
	public static void main(String[] args) {<br><br>
		Map<String, String[]> map = new HashMap<String,String[]>();<br>
		map.put("B", new String[]{"B","C","D"});<br>
		map.put("A", new String[]{"B","C","D"});<br>
		Set<Map.Entry<String, String[]>> entry = map.entrySet();<br>
		for (Map.Entry<String, String[]> entry_ : entry) {<br>
			System.out.println(entry_.getKey().toString() + ":"<br>
					+ java.util.Arrays.toString(entry_.getValue()));<br>
		}<br><br>
	}<br><br>
}