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Run executable jar on double click on Windows
Normally after installing Java, there will be an association between .jar and the javaw.exe. This enables the executable jar to be opened on double click. You can check the association by going to Control Panel -> Programs -> Default Programs -> Associate a file type or protocol with a program. The default program of a file type can be changed in this dialog. However sometimes there are cases where the file association for .jar may be altered after a third party application instal...
JAVA,WINDOWS,JAR,EXECUTABLE JAR 2016-05-12 03:05:04
Recursive class initialization in Java
When a Java class is referenced and initialized, it has to go through the loading and linking first. Once the loading and linking complete successfully. The class will be initialized. The static variables and constant variables will be initialized during this process. Once the class is initialized, it is ready for use. If when class A is initialized and it is referencing a class B, the class B will also get initialized. But what will happen if class B is referencing class A as well? This is call...
Java,JVM,class initialization,static final 2015-04-15 21:04:29
C programming tips in SPARC architecture
If you are a newbie of C programmers in SPARC architecture (For example, working on Solaris), you should pay attention to the following tips:(1) By default, SPARC is big-endian (For Endianness, you can refer http://en.wikipedia.org/wiki/Endianness). It means for an integer (short, int, long, etc), the MSB will be stored in the lower address, while the LSB will be stored in the higher address. (2) SPARC requires byte-alignment. It means for a short (2 bytes long) variable, the star...
C 2014-06-01 03:56:30
PHP 7 is coming soon
After a few RCs, PHP 7 will be officially released on November 12, 2015. This is a major release of PHP since PHP 5.6. @Laruence, one of the core contributors of PHP, has posted this news on Weibo(China's Twitter). This is a one month later than the expected time as recorded in PHP 7 timeline. But it's not that late. The new release will come with a few features including: Scalar type declaration, you can define variable like int now Return type support. Besides declare scalar type ...
RELEASE DATE,PHP7 2015-11-08 09:13:37
Top 10 essential Java classes
When we write Java programs, we will frequently use some classes such as java.lang.String. There are some essential Java classes which we may use frequently, there is no strict rules for the selection of essential Java classes, in fact there are no rules followed. It depends on what projects you are doing or what you have done,, so every one may have his own choices about the top essential Java classes in his mind. Here we list the top 10 essential Java classes you may agree with.1. java.lang.St...
Java,class,essential class,top 10 2012-06-04 09:44:19
Concurrency vs Parallelism
Concurrency and parallelism are two related concepts which deal with executing tasks "simultaneously". From Sun's Multithreaded Programming Guide: Concurrency: A condition that exists when at least two threads are making progress. A more generalized form of parallelism that can include time-slicing as a form of virtual parallelism. Parallelism: A condition that arises when at least two threads are executing simultaneously. These two definitions are too formal to be understood easily. On t...
Concurrency,Parallelism,Thread 2013-08-07 23:42:33
Samsung announces Galaxy S III mini
Samsung announces Galaxy S III mini today, compared to Galaxy S III, the mini version has some changes in screen size and configurations. Below are the detail configurations of Galaxy S III mini: 4-inch screen 800 × 480 resolution 5-megapixel primary camera, VGA front camera 1GHz dual-core processor Android 4.1 operating system Support the Samsung S Voice Personal Assistant, NFC and S Beam transmission function 1GB RAM, two versions with 8GB and 16GB memory, expandable to 32GB with microS...
Galaxy S III mini,Configuration 2012-10-11 19:27:53
Generate signed certificate from CSR in Java
In our previous tutorial, we have explained how to generate CSR which can be sent to CA for generating a signed certificate. In this tutorial, we will explain how to generate the signed certificate from CSR in Java. We will not use an actual CA but a self-signed certificate to act as a CA certificate. Since the CSR contains the subject information where a certificate needs to be generated and signed for. The key here is to extract the subject information from the CSR and then set it as the subje...
JAVA,CSR,SIGN CERTIFICATE 2020-10-24 07:03:17
Microsoft to launch Surface Pro 4 on October 6
Microsoft Microsoft has just updated on their website about an event to be held on October 6. This event will be held in New York at October 6 10am EDT. As described by Microsoft : "We have some exciting news to share about Windows 10 devices". Although there are no details about what these Windows 10 devices are, many think this is the time when new Lumia Phones and Surface Pro 4 will be launched. The Lumia devices will be Lumia 950 and Lumia 950XL. Both of them will be shipped wit...
SURFACE PRO 4,MICROSOFT,WINDOWS 10,LUMIA 2015-09-15 07:31:56
Chrome overtakes IE as the No.1 browser
According to data from market research company StartCounter, by May 2012, Chrome has overtakes IE as the No. 1 web browser globally. Firefox and Safari is following IE to be 3rd and 4th most popular web browser.In May, market share of Chrome is 33%, while IE only gets 32%. Firefox is slowly dropping, which has a share of 25%. However, with release date of Windows 8 approaching, IE 10 will also be shipped with Win8, at that time, the number of users who use IE may increase because according...
Chrome,No.1,IE,StatCounter 2012-05-21 06:03:04
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