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Logback File Appender Example

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Logging is a common and essential issue for software development. Logging allows you to analyse the program execution flow, to detect the bugs and warnings in the code. So logs are frequently the best (and sometimes the only) source of information about a running program. In this example, we are going to show you how to record log messages in ...

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XPath ancestor example

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In this example we will learn how to get the ancestor details of a given node using XPath. We will start with the introduction of XPath – what it is and how to use it, then we will see the working model of the desired functionality. Tools and technologies used in this example are Java 1.6, Maven, Intellij.(Please note you don’t ...

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Apache Camel Hello World example

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In this article, I am going to show you a ‘Hello World’ example of camel. But first let me first introduce you to Apache Camel. Apache Camel is an open-source integration framework which integrates systems. Messages play an important role in integrating systems, you can decide from which source to accept message, build the routing rules to determine how to process ...

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XPath descendant example

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In this example we shall talk about the Descendant axis specifier in XPath. An axis specifier indicates the direction of navigation in DOM tree of that XML document. This helps in effectively querying the XML document. The Descendant axis selects all the descendants of the current node. The ‘descendant’ refers to the children and grand-children of the current node. We ...

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Drawing Swing JTable rows with different colors using TableCellRenderer interface Example

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In this example we are going to demonstrate how to use Java Swing TableCellRenderer interface to customize cell rendering. When a JTable object is created, several default renderers are also created. Those renderers are capable of rendering Boolean choices, dates, image icons, numbers, and objects (as strings). If you do not explicitly attach a custom render to a column, a ...

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JDBC Batch Update Example

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1. Introduction This article presents a simple example of performing JDBC Batch Update. It assumes that the reader is familiar with the JDBC (Java DataBase Connectivity) API which is just one of the tools in Java for connecting to a database from a client. The API provides several simple methods for querying and updating data in a database. Consider a ...

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Java 7 try-with-resources statement

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1. Introduction Try-with-resources in Java 7 is a new exception handling mechanism that makes it easier to correctly close resources that are used within a try-catch block. 2. Whats covered in this blog post? Resource Management With Try-Catch-Finally, Old School Style Managing resources that need to be explicitly closed is somewhat tedious before Java 7. printFile() method private static void ...

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JavaFX FileChooser Example

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This article shows examples of JavaFX file choosers. The FileChooser class is defined in the javafx.stage package. 1. Overview A file chooser provides a simple mechanism for the user to choose a file. File choosers provide a GUI for navigating the file system, and then allows either choosing a file, or entering the name of a file to be saved. ...

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Apache Solr Tutorial for Beginners

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In this example of Apache Solr Tutorial for Beginners, we will discuss about how to install the latest version of Apache Solr and show you how to configure it. Also we will show you how to perform the index using a sample data file. Apache Solr supports indexing from different source formats including various databases, PDF files, XML files, CSV files etc. For ...

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Mockito mock static method example

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In this article, I am going to show you how to mock static methods using Powermockito. PowerMock is an open source mocking library. It extends the existing mocking frameworks, such as EasyMocks and Mockito, to add even more powerful features. One of them being mocking static methods. For more information, read Powermock – Mockito Integration Example. My setup details: I am using Maven – ...

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