包含标签：Java 的文章
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Java – when will static nested classes (and static members in them) be loaded into memory?
Here, I try to use the internal static helper class to implement the singleton class for my database connection: packa…… -
Java – how can I call a method of a null object?
public class JavaPuzzler { public class JavaPuzzler { public static void main(String[] args) { JavaPuzzler ja…… -
Why does Java polymorphism not work in my example
I have these four Java claims: public class Rect { double width; double height; String color; public …… -
Java syntax for a list of comparable objects
I'm writing a method that takes unique parameters as a list of comparable objects and returns nothing I'm not sure wha…… -
What should be the size of the icon in the Java – alertdialog?
I'm trying to assign an icon to an alertdialog, but I keep getting a memory error (seems to be from the size of the ic…… -
Why does setting properties in a session sometimes fail in a java servlet?
I am developing a fairly simple web application using JSP and java servlet running on Tomcat I have been able to set p…… -
Java – how to exclude a single variable using tostrimbuilder
I have an object that contains many variables, but one of them is bytearray, for example public class DataWithFields {…… -
Java – how do I adjust the hue of a color code?
Maybe someone knows that one method in Java (Android) is to apply hue to color code? For example, if I have #1589ff an…… -
Java – in JBoss 7.1 A component named “XXX” has been defined in this module of 1
Timerservicedispatcher is not used in my application to create spring bean names However, the exception thrown by JBos…… -
Allow two or more mobile virtual machines to communicate on their own network
I want to create multiple servers that can communicate directly without using public IP They still need internet acces…… -
Java – the application starts searching for GPS when the application starts, not when needed
>I have an Android application that includes Google Maps V2 as part of the feature <uses-permission android:name…… -
Java – gson JSON parser array
I want to parse some JSON and parse the array Unfortunately, I can't figure out how to handle nested arrays in JSON JS…… -
How does Java and Android darken ImageView
As IOS developers told me, IOS darkens the image when someone clicks it (I don't know how real it is), so I need the s…… -
Java: how to add SSL client authentication
I have this code to connect the server and the client using SSL. Now I want to add client authentication: (I have a se…… -
Java – fix malformed ellipses in strings
I want to fix malformed ellipses (...) in string "Hello.. World.." "Hello... World..." // this is correct "Hello..…… -
Java – master Google Guice
I just started using Google Guice as a dependency injection framework and tried to transform it into a small and mediu…… -
Pass multiple parameters in the App Engine task queue (Java)
Is there any way to pass multiple parameters in the Google App Engine queue? Queue queue = QueueFactory.getQueue("sms-…… -
Java – develop plug-in 6.8 for NetBeans
I want to develop a plug-in for NetBeans 6.8, but I can't find enough tutorials / resources / articles The only decent…… -
Java – determines whether static methods are purely functional
Given a Java lang.reflect. Method object, regardless of whether the method is a pure function (that is, given the same…… -
Java – hosting widgets in the Android launcher
I'm making an Android launcher and I'm stuck in the widget section I've been searching the Internet for about an hour …… -
JUnit – arquillian: wildly embedded?
So far, I have used arquillian and embedded GlassFish 4 X has been tested When I encountered the bug arq-1458, I tried…… -
Java – implements utility classes and singletons using enumerations
Peter Lawley wrote about two uses of enums that most people forget on his blog First, I didn't forget – I didn't even …… -
Does Java IO have the maximum file name length?
Different operating systems have different maximum file names Does java have any restrictions on the length of file na…… -
The future of SAP Java connector
Is SAP Java connector still a good way to connect Java applications to sap? Will connectors be supported and maintaine…… -
Java – G1 garbage collector log analyzer
I am looking for GC log analyzer for the first garbage collector Many people have mentioned "IBM model modeling and an…… -
Is buffered output stream more efficient than input stream in Java?
Bored earlier today, I began to think about the relative performance of buffered and unbuffered byte streams in Java A…… -
Delete sun.com in Java 9 misc. Unsafe will break spring, hibernate
I read here, if Oracle deleted sun. In Java 9 misc. Unsafe, spring and many other popular libraries will be destroyed …… -
Java – how to find bean validation errors in NetBeans
I created an EJB Session Facade in NetBeans 7 to store my entities public class Insurance{ @ManyToOne(optional=fal…… -
Java – Maven build failed dependencies
I have a local artefact repository and my Maven settings point to it, but for some reason, it doesn't seem to hit it a…… -
Java – generic methods with different return types depending on the call location
I have the following methods to use generics to execute getters for each item in the list it receives: public static &…… -
Java – spring boot w / embedded Tomcat does not send requests to the controller
I have an application using spring boot and embedded Tomcat container As far as I know, my code is the same as spring ……