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Tip of the Day
Language: Java
Expertise: Beginner
Jul 23, 1998



Building the Right Environment to Support AI, Machine Learning and Deep Learning

Displaying Help from an Application

It's tempting to use an HTML file to provide help for a Java application, but how do you know which browser is installed on the run time platform and where it is located? On a Windows system you don't need to know, because the .htm or .html file extension should be associated with the browser, and the "start" command can make the connection for you:
boolean win = System.getProperty("os.name")
if (win) {
    Runtime runt = Runtime.getRuntime();
    try {
        runt.exec("start YourHelp.html");
    catch (Exception ex) {}
If a copy of the browser is already active, it will be re-used. Unfortunately this technique does not work on a Unix platform.
Tom Yarker
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