What is a programming lenguage
A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Programming languages can be used to create programs to control the behavior of a machine or to express algorithms.
What is JavaScript? Why is it useful?
JavaScript is a programming language used to make web pages interactive. It runs on your visitor’s computer and doesn’t require constant downloads from your website. JavaScript is often used to create polls and quizzes.
What is a variable?
A Java variable is a piece of memory that can contain a data value. A variable thus has a data type. Data types are covered in more detail in the text on Java data types. Variables are typically used to store information which your Java program needs to do its job.
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