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java MD5 encryption algorithm

Summary of java encryption algorithm--MD5 encryption algorithm

Nov 05, 2016 am 10:18 AM

How to implement java singleton pattern

Nov 04, 2016 pm 05:29 PM

java

MVC mode realizes login and login of adding, deleting, modifying and checking

Nov 04, 2016 pm 05:15 PM

mvc

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.

Nov 04, 2016 pm 03:59 PM

java

Understanding java File source code and exploring File paths

Nov 04, 2016 pm 02:41 PM

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.

Nov 04, 2016 am 09:26 AM

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!

Nov 04, 2016 am 09:22 AM

java

java built-in data types

Nov 03, 2016 pm 05:34 PM

java

In-site messages, group messages and all messages. Gson parsing result

Nov 03, 2016 pm 04:49 PM

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

Nov 03, 2016 pm 02:47 PM

java

Java date conversion

Nov 03, 2016 pm 01:58 PM

java

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:

Nov 03, 2016 pm 01:17 PM

java

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:

Nov 02, 2016 pm 03:06 PM

java

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.

Nov 02, 2016 pm 02:57 PM

java