97久章草在线视频播放,粗大的内捧猛烈进出在线视频,99精品国产一区二区

Article Tags

Home

Technical Articles

類庫下載

java類庫

In-depth understanding of Java virtual machine

JVM memory area When we write programs, we often encounter problems such as OOM (out of Memory) and memory leaks.

Mar 18, 2017 pm 05:52 PM

java virtual machine

Java serialization Serializable

Mar 18, 2017 am 11:35 AM

java

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.

Dec 15, 2016 pm 01:46 PM

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 ...

Dec 03, 2016 am 11:58 AM

java

JavaWeb learning summary_Servlet development

Dec 02, 2016 pm 04:25 PM

javaweb

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...

Dec 02, 2016 pm 12:04 PM

2 ways to implement java dynamic proxy

Nov 30, 2016 pm 02:59 PM

java

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...

Nov 26, 2016 am 09:14 AM

java

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

Nov 26, 2016 am 09:12 AM

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("\ ...

Nov 26, 2016 am 09:11 AM

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 ...

Nov 26, 2016 am 09:10 AM

filter

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

Nov 23, 2016 pm 02:54 PM

java QR code