MATLAB BUILDER JA 2 User's Guide download pdf (Page 260)

6 Reference Infor mation for Java

setenv JAVA_HOME /java/jdk/j2sdk1.5.0

Alternatively, you can add jdk_directory\bin to the system path.

Java CLASSPATH Variable

To build and run a Java application that encapsulates MATLAB the system

needs to find

.jar files containing the MATLAB libraries and the class and

method definitions that you have developed and built with Java Builder. To

tell the system how to locate the

.jar files it needs, specify a classpath

either in the javac commandorinyoursystemenvironmentvariables.

Java uses the

CLASSPATH variable to locate user classes needed to compile

or run a given Java class. The class path contains directories where all the

.class and/or .jar files n ee de d by y our program reside. These .jar files

contain any classes that your Java class depends on.

When you compile a Java class that uses classes contained in the

com.mathworks.toolbox.javabuilder package, you need to include a file

called

javabuilder.jar on the Java class path. This file comes w i th Jav a

Builder; you can find it in the following directory:

matlabroot/toolbox/javabuilder/jar % (development machine)

mcrroot/toolbox/javabuilder/jar % (end-user machine)

where matlabroot refers to the root directory into which the MATLAB

installer has placed the MATLAB files, and

mcrroot refers to the root

directory under which mcr is ins tal led. Jav a Builder automatically

includes this

.jar file on the class path when it creates the component.

To use a class generated by Java Builder, you need to add this

matlabroot/toolbox/javabuilder/jar/javabuilder.jar to the class path.

In addition, you need to add to the class path the

.jar file created by Java

Builder for your compiled

.class files.

Example: Setting CLASSPATH o n Windows. Suppose your MATLAB

libraries are installed in

C:\matlabroot\bin\win32, and your component

.jar files are in C:\mycomponent.

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MATLAB BUILDER JA 2 User's Guide Page 260