Java 归档 - Page 305 of 655

Does Java 8 provide an alternative to the visitor pattern?

What's the difference between functional programming and object-oriented programming? Say I have an animal interface: ……

Java

2020-02-21

Does the Java library manage CSS explosion or reuse?

Java asks: I'd love to use sass and compass, but they are Ruby programs, which will probably require some interesting ……

Java

2020-02-21

Java – is the tight loop broken?

Isn't the tight loop in the program bad? I have an application with a two - threaded game physics simulator Updategame……

Java

2020-02-21

Java – how to sort ArrayList in dictionary order?

I'm trying to sort the string ArrayList representing the card value Therefore, some cards contain letters ("King") and……

Java

2020-02-21

How to use java to type some text in the hidden field of selenium webdriver

I use webdriver and Java for test automation I have the following HTML code for hidden input fields: <input type="h……

Java

2020-02-21

Java – polymorphic call

I'm a novice to Java, and I've seen it in the code in many places that my old people claim List mylist = new arraylist……

Java

2020-02-21

Java – parses a 20 GB input file into an ArrayList

I need to sort 20 GB files (composed of random numbers) in ascending order, but I don't know which technology to use I……

Java

2020-02-20

Java – how to make izpack installer Jar file Exe file

I use izpack to install an installer It's here Jar file I think so Exe file for distribution What should I do? A simpl……

Java

2020-02-20

How to use list properties in Google App Engine data store in Java?

Objects placed in the data store will have a set of tags public class Model { List<String> tagList ... ……

Java

2020-02-20

Java – spring property placeholders do not work properly

I'm in stackoverflow I've seen similar problems on. Com, but no solution is helpful to me #possible values: dev test p……

Java

2020-02-20

Why are Java and C # different in oops?

1) Why are the following codes different C#： class Base { public void foo() { System.Console.WriteLine("base……

Java

2020-02-20

Java – modern for loop for raw arrays

Is there a performance difference between for loops on the original array? Undertake: double[] doubleArray = new doubl……

Java

2020-02-20

Java – naming convention for akka messages and actors

I am currently making a very large Java application based on akka. I have encountered several problems and I am not fi……

Java

2020-02-20

Java – ignore ‘file Result of mkdirs() ‘

This is mydir My code in mkdirs(); This code shows that I ignored file Result warning for mkdirs() I tried to fix this……

Java

2020-02-20

Java – how to add @ serialVersionUID to an anonymous class?

I want to translate the following code from Java to scala: Foo foo = new Foo() { private static final long serialVersi……

Java

2020-02-20

Java – how can an EJB client not find an EJB server without a URL?

I'm new to Java EE At present, I am passing the Java EE 6 tutorial Volume 1 (basic concept beta) of Sun Microsystems I……

Java

2020-02-20

Java – wildfly 8, remote debugging applications

I need to debug y nodes remotely in JBoss 8 / wildly cluster (running two nodes on one machine) For this, in our maste……

Java

2020-02-20

Java – Hibernate: how to use cascading in annotations?

How to use cascading and annotation in Hibernate? But I doubt: I have this situation: public class Package(){ @OneTo……

Java

2020-02-20

Java synchronization method with expensive parameters

I have a synchronization method that seems to "use" synchronization significantly longer than it should be It looks li……

Java

2020-02-20

Java – Solr cannot load MySQL JDBC Driver

I use Solr 4.6 on Mac 1. I try to find out how to load data from MySQL using data import But I couldn't load the jdbc ……

Java

2020-02-20

Java – operation is not allowed after the resultset is closed

Well, he has been trying to solve this problem for the past two days Statement statement = con.createStatement(); ……

Java

2020-02-20

Java – how to disable closing the keyboard if you press done on the keyboard

When the user presses "finish" on the soft keyboard, the keyboard closes I want it to be turned off only when certain ……

Java

2020-02-20

How to use CSS in JavaFX to animate?

I want to change the style of the node by changing its style class Button button = new Button(); button.getStyleClass(……

Java

2020-02-20

Mix of slider and progress bar JavaFX

I want to click ProgressBar on the slider And learn a certain proportion of the track I need to create progress in a m……

Java

2020-02-20

Java, generics don’t work

In my opinion, it should work, but that's not the case Why? Source code: package javaapplication1; import java.util.*……

Java

2020-02-20

Java – difference between bounded type parameters and upper bound wildcards

I know a similar question has been released, although I think I have some differences Suppose you have two methods: //……

Java

2020-02-20

Java – eclipse Juno – why is there no warning to use uncommented private fields?

In previous versions of eclipse, this worked correctly Error / warning I checked "unused private fields" – > warnin……

Java

2020-02-20

Date timezone conversion in Java?

The most direct code I can think of is: SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String in……

Java

2020-02-20

How to use Java library. Add rxtxserial to path?

See English answer > java lang.UnsatisfiedLinkError: no rxtxSerial in java. library. path11 java.lang.UnsatisfiedLi……

Java

2020-02-20

Monitoring Java Web applications – is JMX the right choice?

We have a Java Web application. We want to set up some basic monitoring in order to expand this monitoring in the futu……

Java

2020-02-20

Recognizing images with the same content in Java

Some time ago, I spent some time looking for ways to determine whether the two images are the same to answer this ques……

Java

2020-02-20

Java null behavior

I'm trying to understand how null works in Java If we assign null to any object, what happens after the scene? Does it……

Java

2020-02-20

搜索内容

Does Java 8 provide an alternative to the visitor pattern?

Does the Java library manage CSS explosion or reuse?

Java – is the tight loop broken?

Java – how to sort ArrayList in dictionary order?

How to use java to type some text in the hidden field of selenium webdriver

Java – polymorphic call

Java – parses a 20 GB input file into an ArrayList

Java – how to make izpack installer Jar file Exe file

How to use list properties in Google App Engine data store in Java?

Java – spring property placeholders do not work properly

Why are Java and C # different in oops?

Java – modern for loop for raw arrays

Java – naming convention for akka messages and actors

Java – ignore ‘file Result of mkdirs() ‘

Java – how to add @ serialVersionUID to an anonymous class?

Java – how can an EJB client not find an EJB server without a URL?

Java – wildfly 8, remote debugging applications

Java – Hibernate: how to use cascading in annotations?

Java synchronization method with expensive parameters

Java – Solr cannot load MySQL JDBC Driver

Java – operation is not allowed after the resultset is closed

Java – how to disable closing the keyboard if you press done on the keyboard

How to use CSS in JavaFX to animate?

Mix of slider and progress bar JavaFX

Java, generics don’t work

Java – difference between bounded type parameters and upper bound wildcards

Java – eclipse Juno – why is there no warning to use uncommented private fields?

Date timezone conversion in Java?

How to use Java library. Add rxtxserial to path?

Monitoring Java Web applications – is JMX the right choice?

Recognizing images with the same content in Java

Java null behavior

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