java.io.File provide several methods to get or set file permissions in java code. But the drawback of java.io.File ‘s methods is that it can only separate file permission into two groups which is owner or all users. So java 7 introduce java.nio.file.attribute.PosixFilePermission which provide methods that can let you define file permission more accurately for different […]
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This article will introduce basic user group and file permission concepts and operation commands in Linux. Wish can help you in code development.
Linux User Group And File Permission Introduction Read More »
When you finish your Android app coding and testing, if you want to publish it to the google play store, you should create a publishable app (.apk) file. This article will show you how to create a publishable app (.apk) file step by step.
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Appium is an open-source project which can test mobile application automatically. Before you can use it to run a test case for a mobile application, you need to set up a test environment for it. This article will show you how to set up the Appium test environment step by step.
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java.sql.PreparedStatement class is more powerful and efficient than java.sql.Statement, This example will show you how to execute PreparedStatement in batch.
JDBC PreparedStatement Example – Batch Insert, Update, Delete Read More »
If you need to switch between different databases using JDBC, you can store different database JDBC connection-related information in a properties file. And then you can load the JDBC properties data in java source code to use them. This example will show you how to do it, and how you can utilize its benefits.
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When you execute an Android app after coding, you may always meet bellow errors in the android emulator. The simulator popup a dialog to tell you the android application has been stopped. If you are a newbie of android development, you may become very confused about why this happened, what’s wrong with the code. Do
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Android activity is used to represent Screen. Normally one android app has more than one Screen ( activity ), but how to switch between them? This example will show you how to slip from one screen to another.
Android Activity Example – Switch Between Screens Read More »
Besides define Spring beans in a configuration file, Spring also provides some java annotation interface for you to make Spring bean declaration simple and easy. These interfaces are also called stereotype annotation. They are @Component, @Repository, @Service, and @Controller. If you want to reference such a bean, you just need to annotate that field with
Spring Autowire Use @Component, @Repository, @Service and @Controller Annotations Read More »
Spring framework support internationalization. With this function, you can display text messages in different languages to different locale request users. For example. display English text to US users and Chinese text to china users. This article will show you how to achieve this in Spring.
Spring Internationalization Resource Bundle Examples Read More »