Java 归档 - Page 295 of 655

How does the Java – NUMA architecture affect the performance of activepivot?

We are migrating the activepivot application to the new server (4 slots Intel Xeon, 512gb memory) After deployment, we……

Java

2020-02-27

Why does the switchcase statement in Java work like this?

See the English answer > why can't I switch on a string? 13 Solution Usually, the problem of language design comes ……

Java

2020-02-27

How to get the decimal value of Unicode characters in Java?

I need a programming way to get the decimal value of each character in the string so that I can encode them as HTML en……

Java

2020-02-27

Java – why use private locks instead of internal locks?

In reading about synchronization, I encountered "monitoring mode" to encapsulate variable states Here is the sample co……

Java

2020-02-27

How to programmatically increase the Java heap size

I have a java desktop application for searching for files that will soon reach the default heap limit I will not be ab……

Java

2020-02-27

Java – the difference between string [] A and string…… a

What is the difference when we write string [] A in the main method and string? a？ public static void main(String[]a)……

Java

2020-02-27

Declare enumeration variables in Java beans

I need to declare an enumeration variable as a class member and define a setter and getter for it like a java bean Som……

Java

2020-02-27

Java – unit test EJB

I'm looking for a way to apply TDD to session bean Who can provide suggestions and links on how to unit test them? How……

Java

2020-02-27

Java – using less memory requires reordering array elements

I have a recent interview question about reordering elements in an array with minimum memory usage Do not use any othe……

Java

2020-02-27

Java regular expressions replace all words without replacing all words

I have been using this regular expression in Java for many years and can't make it work: (?:^| )(?:the|and|at|in|or|on……

Java

2020-02-27

Java – using variables in JSTL parameters

Is there any way to specify variables as parameter names in JSTL, that is: <c:set var='myVar' value='dynamicParamet……

Java

2020-02-27

java – ResultSet. TYPE_ SCROLL_ Sensitive behavior

I'm interested in type_ SCROLL_ The behavior of resultset of sensitive type is confused My understanding of this is: &……

Java

2020-02-27

Java – Lucene highlighter

Lucene 4.3. How does a highlighter work? I want to print out the search results from the document (as the search word ……

Java

2020-02-27

How to simulate javax servlet. ServletInputStream

I'm creating some unit tests and trying to simulate some calls This is what I have in my working code: String soapRequ……

Java

2020-02-27

Is there any reason for “Boolean. True. Equals (x)” in Java?

I encountered this code in one of the projects (this is in Java) if (Boolean.TRUE.equals(foo.isBar())) Foo#isbar() is ……

Java

2020-02-27

Java – basegameutils cannot add Google API client Apioptions resolves to type

After importing the basegameutils project into the library and fixing several errors, I encountered these errors: Goog……

Java

2020-02-27

Jbas015852 cannot index class java Lang.illegalstateexception: unknown token

This error occurs when deploying to the local JBoss server Is there any way to solve this warning? The explanation of ……

Java

2020-02-27

Java – Google cloud messaging: when IOS app is in the background, it will not receive alerts

I have followed this tutorial https://developers.google.com/cloud-messaging/ios/client Implement GCM on my IOS applica……

Java

2020-02-27

Java – filter concurrenthashmap by value

I'm trying to filter the size of concurrenthashmap < string, LinkedList < string > > through LinkedList &l……

Java

2020-02-27

Java: how do I group all Java dates in the corresponding week?

Question: I have many dates. I need to arrange them by week Question: how do you group dates according to the dates in……

Java

2020-02-27

Date java was installed using calendar

I want to know if there is an existing enumeration that contains all working days in Java I'm using calendar to handle……

Java

2020-02-27

Draw a beautiful circle in Java

I'm using java graphics and I've been getting ugly This is what my java program does This is the same thing done in MA……

Java

2020-02-27

Java – spring MVC – use flyway to clean up the database between tests

I use flyway to manage the database state in my spring MVC application I configure it in my servlet context XML file e……

Java

2020-02-27

java – Apache Hadoop setXIncludeAware UnsupportedOperationException

I tried to run Apache Hadoop 1.21, but I got this exception: Failed to set setXIncludeAware(true) for parser org.apach……

Java

2020-02-27

java – org. springframework. jdbc. Incorrectresultsetcolumncountexception: incorrect number of columns: expected 1, actual 38

I'm using jdbctemplate to retrieve beans from DB This is my way public List<trackerv3Livedata> getTrackerData()……

Java

2020-02-27

Java – used to check Lombok builders that are not null but not empty

I have a variable class and I don't want it to be null or empty Is there any way to use the Lombok builder to set prop……

Java

2020-02-27

Throw arithmeticexception in Java

In Java, (number / 0) throws an arithmeticexception, while (number / 0.0) = infinity Solution Because IEEE - 754 float……

Java

2020-02-27

Java ServerSocket connection restrictions?

I'm using sockets for some tests. I've encountered some strange behaviors: after the 50th client socket is connected, ……

Java

2020-02-27

Java – deadlock on synchronized (string intern())

My user sun JDK 1.5 ThreadPoolExecutor (24,24,60, timeunit.seconds, new linkedblockingqueue()) Soemtime I use the JDB ……

Java

2020-02-27

Java – how do I check if a thread is sleeping?

Is there any way to check whether a given thread is sleeping? Solution You can call thread Getstate() to check whether……

Java

2020-02-27

Faster output via Java standard?

In an online judging programming contest, I need to output up to 50000 lines in 1 second through standard output (in a……

Java

2020-02-27

Check each bit in the byte array with Java?

So I have a byte array, and I have a function to check whether the nth least significant bit index of the byte array i……

Java

2020-02-27

搜索内容

How does the Java – NUMA architecture affect the performance of activepivot?

Why does the switchcase statement in Java work like this?

How to get the decimal value of Unicode characters in Java?

Java – why use private locks instead of internal locks?

How to programmatically increase the Java heap size

Java – the difference between string [] A and string…… a

Declare enumeration variables in Java beans

Java – unit test EJB

Java – using less memory requires reordering array elements

Java regular expressions replace all words without replacing all words

Java – using variables in JSTL parameters

java – ResultSet. TYPE_ SCROLL_ Sensitive behavior

Java – Lucene highlighter

How to simulate javax servlet. ServletInputStream

Is there any reason for “Boolean. True. Equals (x)” in Java?

Java – basegameutils cannot add Google API client Apioptions resolves to type

Jbas015852 cannot index class java Lang.illegalstateexception: unknown token

Java – Google cloud messaging: when IOS app is in the background, it will not receive alerts

Java – filter concurrenthashmap by value

Java: how do I group all Java dates in the corresponding week?

Date java was installed using calendar

Draw a beautiful circle in Java

Java – spring MVC – use flyway to clean up the database between tests

java – Apache Hadoop setXIncludeAware UnsupportedOperationException

java – org. springframework. jdbc. Incorrectresultsetcolumncountexception: incorrect number of columns: expected 1, actual 38

Java – used to check Lombok builders that are not null but not empty

Throw arithmeticexception in Java

Java ServerSocket connection restrictions?

Java – deadlock on synchronized (string intern())

Java – how do I check if a thread is sleeping?

Faster output via Java standard?

Check each bit in the byte array with Java?

Categories

Recent Posts

Tags