Java 归档 - Page 231 of 655

JavaFX code editor, the content is highlight for Java code

I want to write a text editor in JavaFX, which is similar to the eclipse / NetBeans ide to highlight java code thank y……

Java

2020-04-23

The Java – @ secured function obtains the access denied permission of the authorized user

I have implemented spring security into my rest API according to many threads At first I was stuck in the @ secured co……

Java

2020-04-23

Java – NetBeans JFrame initialization; The build is good, but there is no window

I'm using Java and I'm trying to create a GUI using NetBeans I've done this before. I'm confused because my code doesn……

Java

2020-04-23

Convert Java complex objects to JSON

I need to convert the following classes: package comS309.traxz.data; import java.util.Collection; import org.json.JS……

Java

2020-04-23

Java – should I inherit JFrame / JPanel?

I am used to subclassing window classes in other programming environments, but I often see similar things in Java tuto……

Java

2020-04-23

Java – number of active tasks using ThreadPoolExecutor

I am using ThreadPoolExecutor to perform tasks in my java application I have a request. I want to get the number of ac……

Java

2020-04-23

Java – which is faster, equalsignorecase or comparetoignorecase

In a Java application, suppose I can choose the following comparison method equalsIgnoreCase(String anotherString) com……

Java

2020-04-23

Java – “jarfile cannot be accessed in Linux”

We have a web application running under JBoss 5, which regularly starts a 'Java' process (using processbuilder) to com……

Java

2020-04-23

Java – httpclient publishing progress and multipartentitybuilder

I tried using httpclient 4.3 3 and multipartytybuilder achieve progress when uploading files So I actually execute a p……

Java

2020-04-22

How to use Apache math 3.0 to generate bin of histogram in Java?

I've been looking for using Apache common math 3.0 to generate dustbins for specific data sets (by specifying low freq……

Java

2020-04-22

Accessing inherited class variables in Java

If you inherit from activities that declare certain member variables, how do you access them in subclasses that perfor……

Java

2020-04-22

Java – convert iso8859 string to utf8? Ä Ö Ü = > Ã why?

What's wrong with this code? I made an iso8859 string Therefore, most of them are krypooutput No problem. But how do y……

Java

2020-04-22

Get the return list from foreach Java 8

I'm trying to use stream to deal with something. I think I have a conceptual misunderstanding I try to get an array, c……

Java

2020-04-22

Java – gradle always executes println from any task

I have a simple build Gradle (or build. Gradle for any task with println) println GradLeversion.current().prettyPrint(……

Java

2020-04-22

Java – why should I use URL Openstream instead of URL getContent？

I want to search the content of a website html_content = urllib.urlopen("http://www.test.com/test.html").read() In the……

Java

2020-04-22

Java – persistent error message: an instance of an empty PK was incorrectly provided for the lookup operation

I'm trying to use NetBeans 7.01 to learn JSF 2.0 and JPA tutorials I am using Oracle Xe and JDBC_ 6. I used the JSF pa……

Java

2020-04-22

Java – a substitute for hibernate or TopLink?

Is there a viable alternative to hibernate? Things that are not based on JPA are preferred Our problem is that we are ……

Java

2020-04-22

Java – HQL, where in indicates an empty list crash

I have an HQL statement like this: Select cast(ed.employee.employeeID as int) AS emp_id FROM Education AS ed WHERE ed.……

Java

2020-04-22

Java – spring AOP: @ annotation (annotation)

I (of course) try to maintain the project with many structures I don't know very well In trying to figure out the use ……

Java

2020-04-22

Java – are there any side effects of using many static functions?

At present, I am very interested in game framework because it can promote faster development When I see the code, ther……

Java

2020-04-22

Java – create a custom tag library that extends the spring tag library

I want to create a custom tag library that should extend the existing spring MVC 3.0 tag library I want to do this bec……

Java

2020-04-22

Java – which continuous integration library do you use?

I used cruise control as the CI framework in my last project (I didn't find CruiseControl lacking, I just want to know……

Java

2020-04-22

Java – add date string 1 day

I have a date string newdate = "31.05.2001" I must add one day I tried the following code: String dateToIncr = "31.12.……

Java

2020-04-22

Is java heap memory continuous?

I've seen people comment that Java heap memory is continuous, and people say the opposite So, can someone give me a fi……

Java

2020-04-22

Java: how to cancel application exit

In one of my programs, I want to display a dialog when the user tries to exit the application The user must then choos……

Java

2020-04-22

Reinsert Na into vector

I have a value vector containing Na These values need to be processed by an external program that cannot process Na, s……

Java

2020-04-22

Java – why can’t I access my panel’s getWidth () and getHeight () functions?

I'm writing a simple program to test the basic GUI The program prints a letter in the middle of the screen, allowing t……

Java

2020-04-22

Bit level operations in Java

I'm trying to do something in Java to apply masks, representation sets, etc int one=1; int two=2; int andop=1&2; S……

Java

2020-04-22

Java – mongodb upsert exception invalid bson field

This exception: Exception in thread "Thread-1" java.lang.IllegalArgumentException: Invalid BSON field name id at o……

Java

2020-04-22

Multithreading – how do I make Perl threads without copying all variables?

I have a Perl program that would be very useful to use some form of parallelism But I have a lot of data in variables,……

Java

2020-04-22

Java – references files through classpath in the context of spring

I'm trying to set up org springframework. beans. factory. config. Propertyplaceholderconfigurer spring bean. I have JD……

Java

2020-04-22

Java – gradle compiles but does not run TestNG tests

We just started using gradle and TestNG in our project, so I'm checking if there are actually no test failures I was s……

Java

2020-04-22

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JavaFX code editor, the content is highlight for Java code

The Java – @ secured function obtains the access denied permission of the authorized user

Java – NetBeans JFrame initialization; The build is good, but there is no window

Convert Java complex objects to JSON

Java – should I inherit JFrame / JPanel?

Java – number of active tasks using ThreadPoolExecutor

Java – which is faster, equalsignorecase or comparetoignorecase

Java – “jarfile cannot be accessed in Linux”

Java – httpclient publishing progress and multipartentitybuilder

How to use Apache math 3.0 to generate bin of histogram in Java?

Accessing inherited class variables in Java

Java – convert iso8859 string to utf8? Ä Ö Ü = > Ã why?

Get the return list from foreach Java 8

Java – gradle always executes println from any task

Java – why should I use URL Openstream instead of URL getContent？

Java – persistent error message: an instance of an empty PK was incorrectly provided for the lookup operation

Java – a substitute for hibernate or TopLink?

Java – HQL, where in indicates an empty list crash

Java – spring AOP: @ annotation (annotation)

Java – are there any side effects of using many static functions?

Java – create a custom tag library that extends the spring tag library

Java – which continuous integration library do you use?

Java – add date string 1 day

Is java heap memory continuous?

Java: how to cancel application exit

Reinsert Na into vector

Java – why can’t I access my panel’s getWidth () and getHeight () functions?

Bit level operations in Java

Java – mongodb upsert exception invalid bson field

Multithreading – how do I make Perl threads without copying all variables?

Java – references files through classpath in the context of spring

Java – gradle compiles but does not run TestNG tests

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