这段程序没用调用toString方法,打印的结果不是引用地址值,是不是哪里有复写并调用了toString方法?哪位大神解释下.是不是因为 public static void getStudentInfo(HashMap<String,String> roomMap) 中泛型用了String?
import java.util.*;
class Map07
{
public static void main(String[] args)
{
HashMap<String,HashMap<String,String>> czbk= new HashMap<String,HashMap<String,String>>();
HashMap<String,String> yure = new HashMap<String,String>();
HashMap<String,String> jiuye = new HashMap<String,String>();