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How to make hidden files in Java Program with Example

How to make hidden files in Java Program with Example
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we will see how to hide file in Java or make hidden file in Java. As we said File API in Java doesn’t provide any method to make a file hidden in Java but still you can apply some quick tricks to hide files from Java program. Like in Unix environment any file whose names begin with dot (.) is hidden so you can name your file starting with dot (.) and your File will be hidden in Linux or Unix Environment.
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How to find hidden file with Example

How to find hidden file with Example Icon
You can check hidden files from Java program by using File API and isHidden()method of Java class.
 

How to Run a JAR file from Command Prompt

How to Run a JAR file from Command Prompt Icon
So you got a JAR file which contains your favorite Java game and you are wondering how to run Java program from JAR file? Or you may be simply trying your hand after running Java program from the command prompt and Eclipse IDE. Anyway, it's good to know How to execute Java program from JAR file, as JAR file is a most popular way of shipping Java programs. JAR file usually contains all source and resource in the form of class files, images, sound files etc.
 

Java File I/O Basics

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Java 7 introduced the java.nio.file package to provide comprehensive support for file I/O. Besides a lot of other functionality this package includes the Files class (if you already use this class you can stop reading here). Files contains a lot of static methods that can be used to accomplish common tasks when working with files. Unfortunately it looks to me that still a lot of newer (Java 7+) code is written using old (pre Java 7) ways of working with files. This does not have to be bad, but it can make things more complex than needed.
 

Java compile in Java

Java compile in Java Icon
The Java compiler reads source files and generates class files. (Assembling them to JAR, WAR, EAR and other packages is the responsibility of a different tool.) The source files and class files do not necessarily need to be real operating system files residing in a magnetic disk, SSD or memory drive. After all Java is usually good about abstraction when it comes to the run-time API and this is the case now.
 

How to Use Locks in Multi-threaded Java Program

How to Use Locks in Multi-threaded Java Program Icon
Many Java programmers confused themselves like hell while writing multi-threaded Java programs e.g. where to synchronized? Which Lock to use? What Lock to use etc. I often receive request to explain about how to use Locks in Java, so I thought to write a simple Java program, which is multi-threaded and uses rather new Lock interface. Remember Lock is your tool to guard shared resource which can be anything e.g. database, File system, a Prime number Generator or a Message processor. Before using Locks in Java program...
 

How to read Environment Variables

How to read Environment Variables Icon
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Working with Java Archive Files

Working with Java Archive Files Icon
An archive refers to a collection of one or more files put together as a single unit. Often in Java programs, we come across an archive file called a JAR (Java Archive). This type of file is common to every Java programmer. Archive files are created by using file archive software such as WinZip, 7-zip, tar, and so forth. These types of files are particularly useful to store and transmit multiple files as a single unit. File archives sometime employ data compression and encryption as well. This article delves into some of the key concepts of working with archive files by using Java programming.
 

How To Use Source and Target Parameter in Java Compiler

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Introduction – java.lang package

Introduction – java.lang package Icon
A package is a collection of predefined classes and interfaces, generally, having some common functionality (purpose). A package of Java is equivalent to a header file of C/C++. All the packages put together, that comes with JDK software, are known as Java API. The most important package of Java API is java.lang because without it no Java program with some functionality cannot be developed; it may be an application or applet. As this package is inevitable for each and every Java program you write, the package is implicitly imported if the programmer does not import himself; this automatic importing facility exist only for java.lang package and not for other packages.
 

Loading Java Properties Files

Loading Java Properties Files Icon
Java Properties files are amazing resources to add information in Java. Generally these files are used to store static information in key and value pair. Things that you do not want to hard code in your Java code goes into properties files.
Although there are multiple ways of loading properties file, I will be focusing on loading the resource bundle files from class path resources. There are advantages of adding properties files in the classpath: