public static void main(String[] args){
Map<String, String> map = new HashMap<String, String>(){
{
put("zhang","xinxin");
put("wnag", "jinfeng");
put("li", "xuemei");
put("zhao", "xinyi");
}
};
System.out.println("NO1.===========================");
for(Entry<String, String> entry : map.entrySet())
{
System.out.println("key: " + entry.getKey() + " value: " + entry.getValue() );
}
System.out.println("NO2.===========================");
for (String key : map.keySet())
{
System.out.println("key: " + key + " value: " + map.get(key));
}
System.out.println("NO3.===========================");
Iterator<Entry<String, String>> it = map.entrySet().iterator();
while (it.hasNext()) {
Entry<String, String> en = it.next();
System.out.println("key: " + en.getKey() + " value: " + en.getValue() );
}
}