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org.apache.commons.dbcp2.BasicDataSource Example

In this example we shall show you how to make use of BasicDataSource class of Apache Commons DBCP. Nowadays, many web applications interacts with a relational database, Creating a new ...
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java.net.URLConnection Example

URLConnection class is used for accessing the attributes of a remote resource. It represents a communication link between the URL and the application.This class can be used to read ...
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Generic Classes in Java Example

This article shows creating a generic class. Java generics were introduced with Java SE version 5. Some commonly used generic classes are defined as collections in Java API; for example ...
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Properties File Java Example

In this example, we shall show you how to use property files in java. Java property files are an easy and effective way to organize key value pairs in plain text files. Property files ...
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java.nio.Buffer Example

This article introduces the Buffer class and its basic usage. This class is defined in the java.nio package. A buffer is a container for a fixed amount of data of a specific primitive ...
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java.nio.channels.Selector Example

This example shows the basic usage of Selector. This is an abstract class defined in the java.nio.channels package. Selector is a multiplexor of SelectableChannel objects. NOTE: From ...
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org.apache.commons.dbcp2.PoolableConnection Example

In this post we learn how to use a connection’s pool using the apache commons dbcp2 framework. A connection pool is an object that maintains a pool of opened connections so the ...
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Java ReentrantReadWriteLock Example

This is an example of how to make use of the ReentrantReadWriteLock class of Java. It is an implementation of ReadWriteLock, that also supports ReentrantLock functionality. The ReadWriteLock ...
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JDBC Transaction Rollback Example

In this example will talk about how to perform rollback in JDBC transactions. When we are making changes in the database through a java.sql.Connection, it’s necessary prevent ...
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org.apache.commons.beanutils.converters.ArrayConverter Example

This article introduces the ArrayConverter class of the org.apache.commons.beanutils.converters package and its basic usage. This is defined in the Apache Commons BeanUtils 1.9.2 API. ArrayConverter ...
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