go
英文: Why does we need access modifier "static" for some methods like the following one? 问题 ...
160java
oop
go
英文: Reading a java properties file, values keep going to null 问题 public class test1 extends BaseTest...
147java
oop
go
英文: How to avoid instanceof from this kind of case? 问题 以下是翻译好的代码部分： 在Player.java中，我当前的代码如下所示： public...
146java
oop
go
英文: How do I access an element in an Arraylist inside another Arraylist? 问题 public ArrayList<Jour...
145arraylist
java
go
英文: Why won't the the public class work in Java? 问题 package finalOOP1; import java.util.Scanner;...
184function
java
go
英文: How to call a getter from a subclass which hasn't an abstract declaration in the superclass ...
116java
oop
go
英文: Book class in Java with Enum and a HashSet 问题 以下是翻译好的部分： public class Book { enum Type { Classic...
198java
oop
go
英文: Is this use of Optional bad practice here? 问题 我想检查一下我在这里使用 Optional 是否符合良好的实践。 public Move getCh...
155java
java-8
go
英文: ArrayList for storing objects in Java isn't working when I add objects 问题 我目前正在解决来自 https://...
145arraylist
java
go
英文: How to make choice between inheritance and composition? 问题 我正在讨论继承和组合之间的区别。每个人都赞成组合优于继承，所以问题是我们如...
141java
oop
160评论java
oop