Running Java Applications

You actually run Java applications with the Java tool named, appropriately enough, java. This tool is a program that comes with the Java SDK (java.exe in Windows, in the Java bin directory).

Running Java Apps Without the SDK

You don't need the full Java SDK to simply run Java applications. You can get the java tool in the Java Runtime Environment (JRE), which you can get from the Sun Java site at http://java.sun.com/jdk.

To run the ch10_01 application, I use the java tool like this on the command line:

 %java ch10_01 

The result appears at once:

 %java ch10_01  Welcome to Java 

You can see what this looks like in Figure 10-1, where I'm running this application in a DOS window in Windows.

Figure 10-1. Running a Java application.

graphics/10fig01.gif

That's all it takes. You've created, compiled, and run your first Java application. (Note that if your application isn't responding or you want to stop it for some reason, you can type Ctrl+C in Windows. If that doesn't work, try the Escape key.)

While we're on the topic of compiling and running code, there is another detail that we should cover: commenting your Java code.



Real World XML
Real World XML (2nd Edition)
ISBN: 0735712867
EAN: 2147483647
Year: 2005
Pages: 440
Authors: Steve Holzner

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