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- Java serialization Serializable
- Java serialization Serializable
- java类库 3291 2017-03-18 11:35:49
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- Java Design Pattern—Factory Design Pattern
- Factory pattern: Mainly used to instantiate classes with a common interface. The factory pattern can dynamically determine which class should be instantiated.
- java类库 1991 2016-12-15 13:46:37
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- Java quick sort
- public static void quickSort(double[] array, int i, int j) { if (j <= i) return; int pivotIndext = (i + j) / 2; swap(array, pivotIndext, j); int k = partition(array, i - 1, j, a ...
- java类库 2722 2016-12-03 11:58:19
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- JavaWeb learning summary_Servlet development
- JavaWeb learning summary_Servlet development
- java类库 2087 2016-12-02 16:25:53
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- The java virtual machine runs the jar file directly
- 1. Select the java file, right-click and select export---> select jar file and click next 2. Check export generated class files and resources and export java source files and resoures and then enter the save path in jar file: and click next 3. Default Click next, click next again, click main cla...
- java类库 3743 2016-12-02 12:04:58
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- 2 ways to implement java dynamic proxy
- 2 ways to implement java dynamic proxy
- java类库 2618 2016-11-30 14:59:30
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- Analysis of java modifiers
- Dear viewers, today we will discuss related issues about access modifiers in Java, which are also common questions in interviews. To put it simply, access modifiers are created by code writers to distinguish when the code can be accessed and when the code cannot be accessed. Access restrictions in Java are divided into four categories: friendly (the so-called default type), public, private, and protected. Today we will take a look at the two categories that are more difficult to distinguish, namely friendly and protected. Let’s look at friendly first. When we are in front of members what...
- java类库 1796 2016-11-26 09:14:07
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- JAVA basics
- First, go to the root directory where the jar files and java files are placed and use the command line to compile the java file with the jar package: javac -cp jcifs-1.3.17.jar -encoding utf8 RemoteFileUpload.java Execute: java -Djava.ext.dirs= ./RemoteFileUpload
- java类库 1661 2016-11-26 09:12:58
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- Summary of Java String.split() usage
- There is a String.split() method in the java.lang package, and the return is an array. I use some in my application. Let me summarize it for your reference only: 1. If "." is used as the separator, it must be as follows The writing method is String.split("\\."), so that it can be separated correctly. String.split(".") cannot be used; 2. If "|" is used as the separation, it must be written as follows, String. split("\ ...
- java类库 1877 2016-11-26 09:11:29
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- How to inject Service in Java Filter
- I encountered a problem in the project. Injecting Service into Filter failed and the injected service was always null. As shown below: public class WeiXinFilter implements Filter{ @Autowired private UsersService usersService; public void doFilter(Ser ...
- java类库 1975 2016-11-26 09:10:38
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- Java QR code tool class, with LOGO in the middle
- import java.awt.BasicStroke; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Shape; import java.awt.geom.RoundRectangle2D; import java.awt.image.BufferedImage; import java.io.File; import java.io.OutputStr
- java类库 2146 2016-11-23 14:54:27
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- Java obtains the remote network image file stream, compresses it and saves it locally
- Java obtains the remote network image file stream, compresses it and saves it locally
- java类库 5368 2016-11-21 11:14:57
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- [JAVA Concurrent Programming Practice] Lock Sequence Deadlock
- [JAVA Concurrent Programming Practice] Lock Sequence Deadlock
- java类库 1920 2016-11-17 13:39:15
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- Principles of Java Visibility Mechanism
- Principles of Java Visibility Mechanism
- java类库 1608 2016-11-16 11:20:51
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- Basic use of Java multithreading
- Multithreading is an inevitable and important subject in Java. Today we will talk about its basic use.
- java类库 1908 2016-11-14 09:32:47
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