Java 归档 - Page 61 of 655

Java – how do I determine if an Internet connection is currently available and valid on Android devices?

I have this Android application that needs to load data from a remote server over the Internet This update function ob……

Java

2020-09-04

Java – display JComponent in JPanel on JFrame

I can't display JComponent. In JPanel on JFrame The following does not work JComponent component = ... panel.add(compo……

Java

2020-09-04

Java – how to analyze heap dumps using jhat

I ran jhat on the heap dump and it generated a report How do I use reports to analyze the heap I can't fully understan……

Java

2020-09-04

Java – is there a standard location for storing spring library jar files?

I have downloaded spring 3.0 with dependencies 2. It is found that it contains 405 jar files I usually save third-part……

Java

2020-09-04

Java – BlackBerry Push Notification: do you really need Tomcat / MySQL?

There doesn't seem to be a lot of information about BlackBerry Push technology My only hope is to send notifications t……

Java

2020-09-04

Which Java reporting tool will be used for small and medium-sized webapps in 2010

We have a web application that contains some forms and integrates with mobile applications We will generate reports ba……

Java

2020-09-04

Java – how to use MySQL database in eclipse

I am a novice programmer, so please wait patiently. If I have no meaning at the beginning, please apologize in advance……

Java

2020-09-04

Java – GWT appengine application in development mode is not available on the local network

I am developing a GWT App Engine Application Everything is normal unless I run the application in development mode and……

Java

2020-09-04

Java – draw a line between two points

Hello Solution In swing: Graphics g; g.drawLine(X1,Y1,X2,Y2); If you are drawing a JPanel, you usually put this code i……

Java

2020-09-04

Java: how does a subclass class neutralize a parent constructor?

How can a subclass constructor class neutralize the parent constructor? I mean, in the child constructor, we have to u……

Java

2020-09-04

Java – JBoss security: Web XML and JBoss web xml

web. XML and JBoss web What is the relationship between XML? it seems that: > Jboss-web. xml >Specify the securi……

Java

2020-09-04

Java – extends objects and inherits all variables

Suppose I have a car like object with 30 variables, from maximum speed to color I want to create a mycar object (class……

Java

2020-09-04

Java – native JDK code for copying files

Is there native JDK code to copy files (buffers, streams, or others)? Solution If "native" is used to represent "part ……

Java

2020-09-04

Java – LDAP connection leak in this code

Can anyone explain why this code randomly "leaks" LDAP connections? I can see that the number of established TCP / IP ……

Java

2020-09-04

Java – Spring / LDAP — calling setter method in bean configuration

I'm writing a spring LDAP application and I have to set an authentication policy for contextsource I want to do this i……

Java

2020-09-04

Java – what is a good habit of combining classes

Do not save all my courses in a single SRC – > 'package'_ Name 'folder I'm creating different sub packages to separ……

Java

2020-09-04

java – TELEPHONY_ The service constant is not recognized in one class, but in another

It feels very much like another situation where you don't see the woods I have written a small (non extended) class fo……

Java

2020-09-04

Java – make Jface tableviewer use the composite around it to resize?

Using WindowBuilder for eclipse, I created a tableviewer, which is placed in a complex (tableviewer creates an SWT tab……

Java

2020-09-04

Java – should I create a protected constructor for my singleton class?

According to the design, in singleton mode, the constructor should be marked as private and provide the creation metho……

Java

2020-09-04

Are there any third-party jar files available for Java 6 math evaluation?

I want to be in Java 6 Calculate mathematical expressions in, for example, c=a*b+((b/d)-c)/100-(h/2) How to evaluate t……

Java

2020-09-04

Java – add swing components to the eclipse RCP plug-in

I encountered a problem embedding swing components in SWT (e.g. Eclipse Plug-in..) public void createPartControl(Compo……

Java

2020-09-04

Java – how to create an internal child without creating another class?

I need to generate such XML: <Root> <Children> <InnerChildren>SomethingM</InnerChildren&……

Java

2020-09-04

Haskell (GHC) runtime memory usage or what I did wrong

I wrote a small program in Haskell, a special HTTP server, which is not much more complex than the following code What……

Java

2020-09-04

Java – JBoss security: Web XML and JBoss web xml

web. XML and JBoss web What is the relationship between XML? it seems that: > Jboss-web. xml >Specify the securi……

Java

2020-09-04

Help Java generics: cannot use “object” as parameter “? Extends object“

I have the following code: import java.util.*; public class SellTransaction extends Transaction { private Map<……

Java

2020-09-04

Java – JPA and MySQL transaction isolation level

I have a local query that can be inserted into MySQL database in batches: String sql = "insert into t1 (a,b) select x,……

Java

2020-09-04

Java – regular expression – replaces characters (commas) between double quotes if patterns match

I have this log from the exchange server I use this regular expression to match and group patterns; Basically, the inf……

Java

2020-09-04

My code physicsremoveexample What’s wrong with Java (andengine)?

Try to take an example from here. Physicsremoveexample java. When the program starts, I receive this message: Sorry! T……

Java

2020-09-04

Java reads hexadecimal values into arrays of type int

I have a file that contains integers in hexadecimal I know you can say int i = 0x But when reading I get the wrong val……

Java

2020-09-04

Mapping objects from files in Java

I want to map my objects from a text file. The content of the text file is as follows: ~ attribute1value attribute2val……

Java

2020-09-04

Simple physical simulation in Java does not work properly

I want to achieve ball physics, as a novice, I adjust the code in the tutorial. I try to do my best, but I can't apply……

Java

2020-09-04

Java – how to handle exceptions if a try block is followed at the end

If I ended up using only the catch block, how would I handle exceptions Solution The exception will be passed up the c……

Java

2020-09-04

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Java – how do I determine if an Internet connection is currently available and valid on Android devices?

Java – display JComponent in JPanel on JFrame

Java – how to analyze heap dumps using jhat

Java – is there a standard location for storing spring library jar files?

Java – BlackBerry Push Notification: do you really need Tomcat / MySQL?

Which Java reporting tool will be used for small and medium-sized webapps in 2010

Java – how to use MySQL database in eclipse

Java – GWT appengine application in development mode is not available on the local network

Java – draw a line between two points

Java: how does a subclass class neutralize a parent constructor?

Java – JBoss security: Web XML and JBoss web xml

Java – extends objects and inherits all variables

Java – native JDK code for copying files

Java – LDAP connection leak in this code

Java – Spring / LDAP — calling setter method in bean configuration

Java – what is a good habit of combining classes

java – TELEPHONY_ The service constant is not recognized in one class, but in another

Java – make Jface tableviewer use the composite around it to resize?

Java – should I create a protected constructor for my singleton class?

Are there any third-party jar files available for Java 6 math evaluation?

Java – add swing components to the eclipse RCP plug-in

Java – how to create an internal child without creating another class?

Haskell (GHC) runtime memory usage or what I did wrong

Java – JBoss security: Web XML and JBoss web xml

Help Java generics: cannot use “object” as parameter “? Extends object“

Java – JPA and MySQL transaction isolation level

Java – regular expression – replaces characters (commas) between double quotes if patterns match

My code physicsremoveexample What’s wrong with Java (andengine)?

Java reads hexadecimal values into arrays of type int

Mapping objects from files in Java

Simple physical simulation in Java does not work properly

Java – how to handle exceptions if a try block is followed at the end

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