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Java AutoCloseable Interface Example

In this tutorial we will discuss about the AutoCloseable interface in Java. This interface represents an object that holds its resources until it is closed. Examples of such resources ...
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java.util.concurrent.CopyOnWriteArraySet Example

In this post, we are going to discuss about the class java.util.concurrent.CopyOnWriteArraySet and give you and idea of how you can use it on your own code when building robust multi-threaded ...
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java.util.Date to java.sql.Date

In this example, we shall show you how to convert a java.util.Date object to a java.sql.Date object. This conversion is usually necessary when a Date object needs to be written in a ...
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Log4j 2 RollingFileAppender example

In this example we shall talk about the RollingFileAppender, one of the most basic appenders of Log4j. Log4j a thread-safe and flexible logging library for Java, licensed under the ...
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java.util.concurrent.LinkedBlockingQueue Example

In this example we are going to explain the use of the LinkedBlockingQueue class, and how it is different from the similar ArrayBlockingQueue. The main point of similarity is the concurrent ...
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java.util.concurrent.DelayQueue Example

In this example we shall show you how to make use of DelayQueue class. DelayQueue is an unbounded time-based scheduling BlockingQueue of Delayed elements backed by a heap where an ...
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java.util.concurrent.ConcurrentHashMap Example

In this post, we are going to discuss about the class java.util.concurrent.ConcurrentHashMap<K,V> and give you and idea of how you can use it on your own code when building robust ...
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Java.util.concurrent.SynchronousQueue Example

In this example we will see how to use Java.util.concurrent.SynchronousQueue. SynchronousQueue is a type of Blocking Queue (it implements BlockingQueue) As mentioned in the java docs ...
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java.lang.SecurityException – How to solve SecurityException

In this tutorial we will discuss about SecurityException in Java. This exception is thrown by the security manager, in order to indicate a security violation. The SecurityException ...
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Java PostgreSQL Example

In this article I will discuss about PostgreSQL database and how to use it through Java code. PostgreSQL, or simply Postgres, is an Object-Relational Database Management System (ORDBMS). ...
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