Recent Posts
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Java – from system In get Unicode value
I created one from system In to get the input scanner so that I can get the input from the console Scanner scanner = n…… -
Java – append video files with different widths and heights
I'm building an application where users can record screenshots An integral part of the application is that you can tem…… -
Java – use try catch finally to return the type
See English answers > java's return value in try catch finally mechanism4 private Integer getnumber() { Integer…… -
Java – error: importing com google. appengine. api. Datastore failed to parse JPA gae GWT
Error in development mode [ERROR] [cbd] - Line 15: The import com.google.appengine.api.datastore cannot be resolved Us…… -
Using the dropwizard to process long requests
I have a simple dropwizard service. I want a rest API to start a long-running processing task - including CPU and I / …… -
Java – an effective way to use neo4j to find a node set related to a given node
Given two nodes, is there an effective way to find a set of common nodes (with defined relationships) For example, con…… -
Java EE – hornetq: how to reuse xaconnection and xasession
I encountered some problems when trying to reuse xaconnection and xasession on multiple workers in JBoss applications …… -
Creating CSV files using java
I will use java to create a CSV file This is part of the code: try{ FileWriter writer = new FileWriter(sFileName)…… -
Java – restrict digital input jtextfield
I'm working on a Sudoku solver. I'm trying to limit the number of cells users can enter and can only enter numbers. At…… -
Using the dropwizard to process long requests
I have a simple dropwizard service. I want a rest API to start a long-running processing task - including CPU and I / …… -
Javacv uses ffmpeg to capture frames
I created a class to capture frames from video When a frame is captured, it is saved as a picture When the video is Wh…… -
Java – the best way to implement collision detector in OOP
I made a simple physics based game in Java, and I insisted on implementing the collision detection method I have sever…… -
Sun Java / Oracle bug database: new URL?
It seems that the sun website was finally destroyed: http://bugs.sun.com/ Although it still mentions: http://www.oracl…… -
My application’s Java lang.ClassNotFoundException
I just received an error report from the device "desire HD (ACE)" recently. I can't recreate my life I checked here1 a…… -
Deep copy of generic types in Java
How do deep copies (clones) of generic T, e work in Java? Is it possible? E oldItem; E newItem = olditem.clone(); // d…… -
Java – error syntax SQL exception when reading value with rowmapper
This is my model class //Model public class CustomerData { private String locomotive_id; private…… -
Accessing C constants (titles) from JNI (Java Native Interface)
How do I access constants defined in C header files from the Java side (through JNI)? I have a header file C_ header. …… -
Java – @ stateless WebService with JPA JTA: how to submit changes to managed entities?
I have the following simple WebService declared as @ freeless EJB in GlassFish 3.1 Run on 2.2, eclipse link 2.4 1. Use…… -
Java try / catch problem
I'm new to Java. I always encounter problems with the try / catch function in the code, so I wonder if you can help me…… -
Loading pictures from Android L2 cache to realize photo wall function
To realize the function of loading pictures from the secondary cache, when using disklrucache, you need to first add a…… -
Android recyclerview realizes horizontal and vertical split lines
Android recyclerview does not arbitrarily set the horizontal split line like listview in the past. If you want to real…… -
Method for clicking and setting color of a field in Android string
In Android development, we often encounter clickable and color settings for some fixed fields in the string. Now paste…… -
Android gesture regular matching picture example code
Add gestures to controls without gestures (viewflipper) xml Activity Control, I put all the pictures in the memory of …… -
Android uses broadcastreceiver to realize forced offline
Idea: first enter the login interface, enter the account and password, and then log in to the main interface. In the m…… -
Example code of Android application accessing wechat sharing
In recent projects, wechat sharing will be accessed, and the access process will be recorded Register application info…… -
Android takes photos via mobile phone or selects pictures from local album to set avatar
Social apps such as wechat, QQ and microblog usually have the function of setting avatars. There are usually two ways …… -
Android drop-down list option box and indicator arrow animation
The Android native spinner provides a drop-down list option box, but in some popular apps, the native spinner seems to…… -
How to use Android StringBuffer
Today, let's talk about the use of StringBuffer. Like string, StringBuffer class is also used to represent strings. Ho…… -
Android live app gift combo animation effect (example code)
Recently, I was working on the company's live broadcast project. I need to implement a control for sending gifts by cl…… -
Method of customizing progress control for Android
There are all kinds of progress, and most of them are simple to customize. Define them according to business requireme…… -
Summary of Android implementation methods
Summary of Android implementation methods This paper provides seven methods for Android sliding. Each implementation m…… -
Analyze the startup process of Android activity
Analyze the startup process of Android activity For the startup process of Android activity, I have read the Android s……