Java 归档 - Page 74 of 655

What is the reason for setting the minimum Java heap size?

I can set the minimum and maximum Java heap size by passing the parameters - XMS and - Xmx respectively@ H_ 403_ 7@ So……

Java

2020-09-02

Java swing GridLayout vertical constraint

Can I add components in GridLayout vertical? I mean, the next one is higher than the previous one? thank you Solution ……

Java

2020-09-02

Simple java Pokemon extinguishing simulator

I wrote a class to create and fight Pokemon, but I couldn't figure out how to call the battle method in the tester cla……

Java

2020-09-02

Java – modify color selector panel

I am creating a color selector and need to modify one of the color selector panels What I want is that I want to input……

Java

2020-09-02

Java – parsing large xlsx files, date format

Because the xlsx file may contain millions of lines, I decided to use the POI event model to sample from here (example……

Java

2020-09-02

Java – in wicket 1.5 (. 2), there is no component reloaded on the URL?

For the first time, I used the following URL to navigate to my application: In debug mode, I saw wicket instantiate my……

Java

2020-09-02

Occurs before the java thread starts

I read somewhere that starting a thread has some special effects on events before the relationship Now I'm not sure if……

Java

2020-09-02

Performance overhead using volatile for setjmp / longjmp

For setjmp / longjmp to work, you need to declare the local variable volatile If someone compiles their code with - O3……

Java

2020-09-02

Java – select the first index in the collection

I sometimes feel like I'm reinventing the wheel I want to know in Java / Jakarta commons / guava /? Whether there are ……

Java

2020-09-02

Java code is equivalent to the following PHP code

The following PHP syntax may be Java equivalent: $newPerson = array( 'firstname' => 'First','lastname' =……

Java

2020-09-02

Java – how to use Guice to inject impl of some interfaces into Android activity

I use Guice 3.0 on Android to do some di I have public interface APIClient { } and public class DefaultAPIClient imple……

Java

2020-09-02

Multithreading – how do I call runnable using the spring framework?

I have a service that needs to call the runnable class Here are the lines of code used in my service @Autowired privat……

Java

2020-09-02

Java – how to append two bytes to int

I tried to append two bytes with hexadecimal values and store them as integers Obviously, everything is an unsigned va……

Java

2020-09-02

Debugging and publishing configuration in Java NetBeans project

Can I use a debug / release configuration that I can choose between so that I can change some variables when compiling……

Java

2020-09-02

Java – generate MouseMove event using dispatcher?

Do you use Java awt. Component. DispatchEvent (awtevent) does a MouseMove event? .dispatchEvent(new MouseEvent(client.……

Java

2020-09-02

Java – unit test for parsing files. How to load files from within the application?

I want to test a service method for parsing Excel files >I want to create a test folder for Excel files under web a……

Java

2020-09-02

Java JSON parsing

Well, I've been trying for three hours now Using a lot of APIs, it still doesn't work properly I'm trying to parse { ……

Java

2020-09-02

Java – Dom4j xmlns attribute

I want to add only the xmlns attribute to the root node, but when I add a namespace to the root element, all subsequen……

Java

2020-09-02

JUnit conditional disassembly

I want conditional disassembly in my JUnit test cases, such as @Test testmethod1() { //condition to be tested } @Teard……

Java

2020-09-02

Java and type security

When comparing Java and JavaScript, the MDN JavaScript guide explains the following: Of course, with regard to the fir……

Java

2020-09-02

Import nanos into Java sql. Timestamp

http://docs.oracle.com/javase/6/docs/api/java/sql/Timestamp.html The only ctor that doesn't belittle needs millis Is t……

Java

2020-09-02

Java – sequencegenerator problem for unit testing in HSQLDB / H2

I've tried to use HSQLDB and H2 for unit testing, but I'm facing the problem of sequence generator The field declarati……

Java

2020-09-02

Java: how to make this serializable?

I need the following class to be serializable package helpers; public class XY implements Comparable<XY> { ……

Java

2020-09-02

Java – generic parameters for serializable collections

I have such members in a serializable class: private final Map<String,List<T>> categoryMap = Maps.newHashM……

Java

2020-09-02

Java – how do I get numbers? How many items have different names?

I have a list < custom > Where is custom class Custom { public int id; public String name; } How do I ge……

Java

2020-09-02

Java – spring using security: authentication principal in the link username

OK, this should be a simple one In the header In the JSP x file, I want a link to guide authenticated users to their u……

Java

2020-09-02

Java – buttons are not initially drawn

There is a problem with my applet. The buttons won't be drawn until you hover over them They stay after that, but once……

Java

2020-09-02

Java – how do I display jtextfield when I click an image?

So I'm trying to make this program that allows users to tag photos in Java (a bit like Facebook tags) I've finished lo……

Java

2020-09-02

Java – should the connectmanager really shut down?

Sometimes I get java.net.socketException: Too many open files java.net.socket.createImpl(Socket.java:397) java.net.s……

Java

2020-09-02

Java – calendar volume affects other calendars

I have a piece of code that I don't quite understand It caused a mistake There is a calendar object and a method to wr……

Java

2020-09-02

Exception in thread “main” Java lang.RuntimeException：Stub

Hey, guys, I got this strange mistake. I can't figure out why? package com.androidbook.services.httpget; import java.……

Java

2020-09-02

Java – reference to ArrayList element

I tried to get a reference to the ArrayList element, but I failed ArrayList<String> test = new ArrayList<Stri……

Java

2020-09-02

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What is the reason for setting the minimum Java heap size?

Java swing GridLayout vertical constraint

Simple java Pokemon extinguishing simulator

Java – modify color selector panel

Java – parsing large xlsx files, date format

Java – in wicket 1.5 (. 2), there is no component reloaded on the URL?

Occurs before the java thread starts

Performance overhead using volatile for setjmp / longjmp

Java – select the first index in the collection

Java code is equivalent to the following PHP code

Java – how to use Guice to inject impl of some interfaces into Android activity

Multithreading – how do I call runnable using the spring framework?

Java – how to append two bytes to int

Debugging and publishing configuration in Java NetBeans project

Java – generate MouseMove event using dispatcher?

Java – unit test for parsing files. How to load files from within the application?

Java JSON parsing

Java – Dom4j xmlns attribute

JUnit conditional disassembly

Java and type security

Import nanos into Java sql. Timestamp

Java – sequencegenerator problem for unit testing in HSQLDB / H2

Java: how to make this serializable?

Java – generic parameters for serializable collections

Java – how do I get numbers? How many items have different names?

Java – spring using security: authentication principal in the link username

Java – buttons are not initially drawn

Java – how do I display jtextfield when I click an image?

Java – should the connectmanager really shut down?

Java – calendar volume affects other calendars

Exception in thread “main” Java lang.RuntimeException：Stub

Java – reference to ArrayList element

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