Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » C »

constant

In programming, a constant is a value that never changes. The other type of values that programs use is variables, symbols that can represent different values throughout the course of a program.

A constant can be

  • a number, like 25 or 3.6
  • a character string, like "this is a string"
  • Constants are also used in spreadsheet applications to place non-changing values in cells. In contrast, a spreadsheet formula can produce a different value each time the spreadsheet is opened or changed.







    TECH RESOURCES FROM OUR PARTNERS
    LATEST ARTICLES
    8 Agenda Apps to Help Students Stay Organized

    Webopedia's student apps roundup will help you to better organize your class schedule and stay on top of assignments and homework. Read More »

    List of Free Shorten URL Services

    A URL shortener is a way to make a long Web address shorter. Try this list of free services. Read More »

    Top 10 Tech Terms of 2015

    The most popular Webopedia definitions of 2015. Read More »

    STUDY GUIDES
    The 7 Layers of the OSI Model

    The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare... Read More »

    Computer Architecture Study Guide

    Webopedia's computer architecture study guide is an introduction to system design basics. It describes parts of a computer system and their... Read More »

    What Are Network Topologies?

    Network Topology refers to layout of a network. How different nodes in a network are connected to each other and how they communicate is... Read More »