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文件到Java中的byte [] - File to byte[] in Java

问题: 如何将java.io.File转换为byte[] ? 解决方案: 参考一:https://stackoom.com/question/3bSW/文件到Java中的byte 参考二:https://oldbug.net/q/3bSW/File-to-byte-in-Java......

2020/04/30 04:25
31
如何在Java中解析JSON - How to parse JSON in Java

问题: I have the following JSON text. 我有以下JSON文本。 How can I parse it to get the values of pageName , pagePic , post_id , etc.? 如何解析它以获得pageName , pagePic , po...

2020/04/14 06:36
67
如何在Java中解析JSON - How to parse JSON in Java

问题: I have the following JSON text. 我有以下JSON文本。 How can I parse it to get the values of pageName , pagePic , post_id , etc.? 如何解析它以获得pageName , pagePic , po...

2020/06/19 06:56
154
如何在Java中分割字符串 - How to split a string in Java

问题: I have a string, "004-034556" , that I want to split into two strings: 我有一个字符串"004-034556" ,我想分成两个字符串: string1="004"; string2="034556"; That means the ...

2020/04/02 06:52
3
如何学习Java?

原文链接:https://blog.csdn.net/dearbaba_8520/article/details/103941812 首先,想表达的是我并不是大神,下面的内容写了希望对新手有些帮助。我是在一个二流的本科院校毕业。当初,也和大...

Java自定义异常

Java自定义异常 参考文章: (1)Java自定义异常 (2)https://www.cnblogs.com/schangxiang/p/11179314.html 备忘一下。

2020/09/30 03:16
22
什么是Java中的守护程序线程? - What is a daemon thread in Java?

问题: 谁能告诉我Java中有哪些守护程序线程? 解决方案: 参考一:https://stackoom.com/question/9Hn2/什么是Java中的守护程序线程 参考二:https://oldbug.net/q/9Hn2/What-is-a-daemon-...

2020/04/25 06:19
11
什么是Java中的守护程序线程? - What is a daemon thread in Java?

问题: 谁能告诉我Java中有哪些守护程序线程? 解决方案: 参考一:https://stackoom.com/question/9Hn2/什么是Java中的守护程序线程 参考二:https://oldbug.net/q/9Hn2/What-is-a-daemon-...

2020/06/30 06:42
24
如何在Java中加入两个列表? - How do I join two lists in Java?

问题: Conditions: do not modifiy the original lists; 条件:不修改原始列表; JDK only, no external libraries. 仅限JDK,没有外部库。 Bonus points for a one-liner or a JDK 1.3 vers...

2020/07/08 15:53
39
如何在Java中加入两个列表? - How do I join two lists in Java?

问题: Conditions: do not modifiy the original lists; 条件:不修改原始列表; JDK only, no external libraries. 仅限JDK,没有外部库。 Bonus points for a one-liner or a JDK 1.3 vers...

2020/05/03 15:29
10
什么时候以及如何使用ThreadLocal变量? - When and how should I use a ThreadLocal variable?

问题: When should I use a ThreadLocal variable? 什么时候应该使用ThreadLocal变量? How is it used? 如何使用? 解决方案: 参考一:https://stackoom.com/question/3QlE/什么时候以及如...

2020/06/25 08:05
12
Java的“ for each”循环如何工作? - How does the Java 'for each' loop work?

问题: Consider: 考虑: List<String> someList = new ArrayList<String>(); // add "monkey", "donkey", "skeleton key" to someList for (String item : someList) { System.out.println...

2020/06/08 16:12
12
Java的“ for each”循环如何工作? - How does the Java 'for each' loop work?

问题: Consider: 考虑: List<String> someList = new ArrayList<String>(); // add "monkey", "donkey", "skeleton key" to someList for (String item : someList) { System.out.println...

2020/08/09 03:05
16
用Java获取当前工作目录 - Getting the Current Working Directory in Java

问题: I want to access my current working directory using 我想使用以下命令访问我当前的工作目录 String current = new java.io.File( "." ).getCanonicalPath(); System.out.println(...

2020/06/20 02:57
30
Java:何时使用静态方法 - Java: when to use static methods

问题: I am wondering when to use static methods? 我想知道何时使用静态方法? Say if I have a class with a few getters and setters, a method or two, and I want those methods only...

2020/06/23 20:03
72
比较Java枚举成员:==或equals()? - Comparing Java enum members: == or equals()?

问题: I know that Java enums are compiled to classes with private constructors and a bunch of public static members. 我知道Java枚举被编译为具有私有构造函数和一堆公共静态成员的类...

2020/08/06 23:01
3
LINQ的Java等效项是什么? [关闭] - What is the Java equivalent for LINQ? [closed]

问题: LINQ的Java等效项是什么? 解决方案: 参考一:https://stackoom.com/question/56ei/LINQ的Java等效项是什么-关闭 参考二:https://oldbug.net/q/56ei/What-is-the-Java-equivalent-f...

2020/04/22 20:16
20
PHP等同于.NET / Java的toString() - PHP equivalent of .NET/Java's toString()

问题: How do I convert the value of a PHP variable to string? 如何将PHP变量的值转换为字符串? I was looking for something better than concatenating with an empty string: 我在寻...

如何在Java中声明和初始化数组? - How do I declare and initialize an array in Java?

问题: 如何在Java中声明和初始化数组? 解决方案: 参考一:https://stackoom.com/question/52Kr/如何在Java中声明和初始化数组 参考二:https://oldbug.net/q/52Kr/How-do-I-declare-and-...

2020/06/03 15:05
28
如何在Java中从另一个调用一个构造函数? - How do I call one constructor from another in Java?

问题: Is it possible to call a constructor from another (within the same class, not from a subclass)? 是否可以从另一个(在同一类中,而不是在子类中)调用构造函数? If yes how? ...

2020/08/02 21:25
25

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