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How to add user in Ubuntu and assign root rights?

How to add user in Ubuntu and assign root rights ? Let's start learning how to add user in Ubuntu and assign root rights to it. When you install any OS on your server, you...

Java Virtual Machine ( JVM ) – How does JVM work?

Java Virtual Machine JVM is an abstract machine which provides the environment for java bytecode where it can be executed. JVM hides the hardware and operating systems. It provides a virtual machine in which Java...
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A Brief Introduction to Java Programming

What is Java? A high-level general programming language, designed by James Gosling, was released in 1995 by Sun Microsystems. Now it is under the ownership of Oracle. Java supports the multi-paradigm that includes object-oriented approach,...