作者:gogo迷失的大G | 来源:互联网 | 2023-05-16 20:38
我的课程中有一个名为DataStorage的hashmap:
HashMap people = new HashMap();
people.put("bob", 2);
people.put("susan", 5);
如何在不同的类中访问此HashMap中的数据?
1> vojta..:
将HashMap创建为实例变量,并提供一种方法将其访问到您的类API中:
public class DataStorage {
private HashMap people = new HashMap();
public HashMap getPeopleMap() {
return people;
}
}
public class AnotherClass {
DataStorage x = new DataStorage();
private void someMethod() {
HashMap people = x.getPeopleMap();
//work with your map here...
}
}