Java Properties File – How to Read and Write

In this tutorial you will learn about java properties file and how to perform read and write operations on it.   What is properties file? In Java related technologies, properties file is used to store configuration data or settings of application. It has .properties extension.   Why we need properties file? It makes application maintenance …

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Solve javac is not recognized as an internal or external command Error

The error javac is not recognized as an internal or external command arises when we try to compile any java source file using javac command. The reason for this error is because the path of javac command is not set properly. This error can be solved easily by setting javac compiler path in environment variables. …

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