public class TNull
{
public static void main(String[] args)
{
Map writers = new HashMap<String,String>();
writers.put("01", "01");
writers.put("02", "02");
writers.put("03", "03");
writers.put("04", "04");
writers.put("05", "05");
System.out.println("通过Map.entrySet遍历key和value");
for (Map.Entry<String, String> entry : writers.entrySet())
{
System.out.println("key= " + entry.getKey() + " and value= " + entry.getValue());
}
}
}