包含标签：Java 的文章
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Java – converts an integer to an equivalent number of spaces
I want to know that the easiest way is to convert an integer to an equivalent number of spaces When printing a binary …… -
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Java – iText – avoid the last line and don’t split the page to the next page
I'm using Java's iText 5 I have some pages with multiple tables with dynamic rows In some cases, the last row of the t…… -
Java – debug servletcontextlistener by setting breakpoints in eclipse contextDestroyed()
I implemented a custom servletcontextlistener and placed breakpoints on contextinitialized () and contextdestroyed () …… -
Introduction to adapter pattern of Java design pattern
This paper illustrates two adapter modes, class adaptation mode and object adaptation mode, as follows: 1. Class adapt…… -
Java – what is enum useful?
See English answers > What are enums and why are they useful? twenty-two It is something between classes and variab…… -
MySQL + spring database isolation level and performance analysis
Here, take MySQL as an example to clarify the following issues: I If a general project does not configure transactions…… -
Detailed explanation of the top ten new features of java8
“Java is still not dead―and people are starting to figure that out.” This tutorial will use simple annotated code to d…… -
Tomcat7. 0 installation configuration details (picture and text)
Note: the Tomcat server is a web server that conforms to the J2EE standard. EJB programs cannot be run in Tomcat. If y…… -
Using JSP to call JavaBean to implement super simple web page calculator example
Online standard calculator: http://tools.jb51.net/jisuanqi/jsq Online scientific calculator: http://tools.jb51.net/jis…… -
In depth analysis of the difference between Java interface and abstract class
This paper analyzes the difference between interface and abstract class in java learning, which is very important for …… -
Example sharing of deleting empty lines in text files using java
Java delete empty lines in text file -
Java 8 stream filters the values in the list
I have an object that looks like this class MyObject { String type; List<String> subTypes; } Is it pos…… -
Java – query returns multiple result sets
I have an MSSQL database and am running the following query: select * from projects; select * from user The above quer…… -
Java – add token to Lucene tokenstream
I wrote a tokenfilter, which adds tokens to the stream Tests show that it works, but I don't fully understand why I wo…… -
Java – perform UPnP scan without returning to Philips hue Bridge
I tried to implement my own UPnP scan. It mainly works and proves that this is not me. I have a Windows program that a…… -
Java – inherit JPA and Hibernate issues
I have a strange problem loading some objects I use JPA 1, hibernate core version 3.3 0.sp1 and hibernate entitymanage…… -
Java – two related enumeration mappings?
I have two related enumerations Enum1： public enum HttpMethodName { GET,POST,PUT,DELETE; } Enum2： public enum …… -
Java – avoid generic forms foo >
I often find myself writing generic class definitions for forms public class Foo<ActualType extends Foo<ActualTy…… -
Is there any way to reinitialize a static class in Java?
I try to unit test a class that references static data from another class I can't "not" use this static class, but obv…… -
Multithreading – upgrading threads using CLR
Using Visual Studio 2008 and boost library 1.46 1 I want to compile and link the following and / or CLR flags: #includ…… -
Java dateformat illegal pattern character ‘y’
We recently made a strange error in the production environment (the test environment works normally) java. Lang. illeg…… -
Java – how do I get file types on Mac OS X?
I use this code to get the type of file – FileSystemView filesystem = FileSystemView.getFileSystemView(); String sFile…… -
Java – Etag processing in spring MVC rest
I am considering switching from Apache CXF RS and Jax rs to spring MVC rest, and look at some problems in the way spri…… -
Java executor: how do I stop a submitted task?
I have submitted a task using the actuator and I need it to stop after a period of time (e.g. 5 minutes) I've tried th…… -
Java – JSF 2 – bean validation: validation failed – > null value is replaced by the last valid value from the managed bean
I don't understand the behavior of jsf2 during the price period I hope someone can help me I have a form in which the …… -
Java hibernate uses addentity to create sqlsql
I need to apply SQL queries similar to this SELECT id as id,c03 as c03,c34 as c34 FROM (SELECT id,c03…… -
Java – JSON mapping exception cannot deserialize an instance to start_ Array token
I tried to parse my JSON request to my model I don't know what's wrong with this code The syntax of JSON is also corre…… -
Java: different double compared with double
I know that double is a wrapper class that contains even numbers Today I see another major difference: double a = 1.0;…… -
Java – how to write paging logic?
Can anyone provide some ideas / logic to write paging logic for the search page I'm studying? <prevIoUs 1 |2 |3 | 4…… -
What are the advantages and disadvantages of using XML to transfer data in this Java program?
I was asked to write a GUI of an existing shell / CmdLine program written in Java. I want to create an abstraction lay…… -
Java – hibernate – cannot use UserType to execute queries in the where clause
I have a hibernate UserType defined as converting data before it enters our database, and then decompressing it when i……