摘要:
static class Test { public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); Map map1 = new HashMap(); map.pu 阅读全文
摘要:
java this 三种用法 1.区分成员变量和局部变量 public class ThisDemo { public static void main(String[] args) { Student s=new Student("小明明",20); System.out.println(s); 阅读全文