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- JAVA concurrent programming interrupt
- The so-called interrupt operation: It does not actually interrupt a running thread, but only issues an interrupt request, and then the thread interrupts itself at the next appropriate moment.
- java类库 1850 2016-11-04 15:59:13
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- Understanding java File source code and exploring File paths
- Understanding java File source code and exploring File paths
- java类库 2316 2016-11-04 14:41:02
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- How to use embedded MySQL in Java
- This document mainly introduces the use of embedded MySQL in Java. For some application projects, it is necessary to provide an installed version of MySQL and Oracle. But sometimes if it is a small tool, it can be installed or a small software with strong portability. It may be more troublesome to install the database again.
- java类库 2148 2016-11-04 09:26:28
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- Database CRUD operations in Java 8 Streams
- When coming into contact with a new tool, the biggest obstacle to overcome at the beginning is how to let yourself try to make a small thing first. Now you may be more confident in your understanding of how the new Stream API works in Java 8, but you may not have used it to perform database queries. To help you get started using the Stream API to create, modify, and read from SQL databases, I've put it all together in this quick-start tutorial. Hope it helps you improve your use of streaming APIs!
- java类库 1555 2016-11-04 09:22:22
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- java built-in data types
- java built-in data types
- java类库 1983 2016-11-03 17:34:22
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- In-site messages, group messages and all messages. Gson parsing result
- In-site messages, group messages and all messages. Gson parsing result
- java类库 1837 2016-11-03 16:49:17
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- Java inheritance and interfaces
- The most critical role of interfaces is also the most important reason for using interfaces: they can be traced back to multiple basic classes. The second reason for using an interface is the same as for using an abstract base class: to prevent the client programmer from making an object of this class and specifying that it is just an interface. This brings up a question: Should I use an interface or an abstract class? If we use interfaces, we can get the benefits of abstract classes and interfaces at the same time. So if the base class you want to create does not have any method definitions or member variables, then you are willing to use an interface instead of an abstract class anyway. In fact, if you know in advance that something is going to be a base class, your first option is to turn it into an interface. Only when you must use a method definition or become
- java类库 1829 2016-11-03 14:47:38
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- Java date conversion
- Java date conversion
- java类库 1740 2016-11-03 13:58:46
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- Initialization sequence of java classes
- In Java, when we create a new object, the members, initialization blocks and constructors in the object are loaded in a certain order. See the picture below:
- java类库 1679 2016-11-03 13:17:37
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- Java final argument
- Java 1.1 allows us to make arguments final by declaring them appropriately in the argument list. This means that inside a method, we cannot change what the argument handle points to. As follows:
- java类库 1849 2016-11-02 15:06:04
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- java interface
- Sun Company feels that the abstract class of C++ is not good and does not strictly control it. Therefore, Sun upgraded abstract classes to interfaces. Abstract classes are rarely used in Java. All declarations use interfaces to implement them.
- java类库 1958 2016-11-02 14:57:00
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- Crawl all links on a website
- Crawl all links on a website
- java类库 4113 2016-11-02 14:42:07
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- Use Java to develop a tool to automatically detect whether a domain name can be registered
- Using Java to develop a tool to automatically detect whether a domain name can be registered
- java类库 2721 2016-11-02 14:38:33
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- Analysis and processing of Java thread leaks
- Analysis and processing of Java thread leaks
- java类库 4150 2016-11-02 14:31:35
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- Java basics-class variables, class methods
- Java basics-class variables, class methods
- java类库 1669 2016-11-02 14:16:22
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