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How to Write Bean PropertyChangeListener in Java

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Property change events occur when ever there is change in the property values. We assume that the component conforms with the Java Bean specification. JavaBean s property is accessed using the set or get methods. These methods are invoked by the application for setting or getting the values from the bean. This doesn’t have any …

FileNotFoundException in Java

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If you are working with the File APIs in Java, it is common that you would encounter the FileNotFoundException. This is a subclass of IOException. This Java exception is thrown by the classes FileInputStream, FileOutputStream, and RandomAccessFile. These classes trying to access a file in the system for the purposes of reading or writing into …

Java 8 Release and Features

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Finally, Java 8 arrives on March 18, 2014. This release has been announced at EclipseCon 2014. It is the first major release in Java after two years of time. Java 8 comes with lot of new features which are new to the Java programming itself. From today you can download Java 8 and use it …

Prime Number Generation in Java

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This simple example demonstrates how to get the prime numbers using Java program for the given range. What is prime number?. A number which is divided only by 1 and itself is known as the prime number. If you take an example, 7 is a prime number, because it can be divided by only itself(7) …

Java Immutable Objects

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Objects whose state can’t be changed after its creation are called immutable objects. It is considered an effective strategy to make objects immutable if they are going to be used in multithreaded applications. Java’s built-in Strings, Integers are all immutable objects and so there must be some solid reasoning behind that. In this article, lets …

Log4j 2 Example

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This tutorial explains how to configure the Log4j 2 in your standalone application. Note that, this example will work only of your application is running as standalone. I will write another post for the web application configuration. The following steps explains how the Log4j 2 library loading the suitable configurations. Log4j will check the system …

Cookies In Servlet

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Java EE Tutorials Servlets Tutorials Servlets Interview Questions Cookies are text data sent by server to the client and it gets saved at the client local machine. This is a small bits of information that a web browser send to browser and that are browser returns unchanged after visiting the same page. Server can accept multiple …