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usejava (37 calls, 0.000 sec)
Generated 15-Mar-2007 12:01:49 using real time.
M-function in file C:\Program Files\MATLAB71\toolbox\matlab\general\usejava.m
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Parents (calling functions)

Function NameFunction TypeCalls
help>refPageUrlM-subfunction2
helpM-function2
javachkM-function33
Lines where the most time was spent
No measurable time spent in this function

Line NumberCodeCallsTotal Time% TimeTime Plot
45
isok = system_dependent('useJa...
370 s0%
44
error(nargchk(1,1,nargin));
370 s0%
Other lines & overhead  0 s0%
Totals  0.000 s0% 
Children (called functions)
No children
M-Lint results
No M-Lint messages.
Coverage results
[ Show coverage for parent directory ]
Total lines in file45
Non-code lines (comments, blank lines)43
Code lines (lines that can run)2
Code lines that did run2
Code lines that did not run0
Coverage (did run/can run)100.00 %
Function listing
   time   calls  line
1 function isok = usejava(feature)
2 %USEJAVA True if the specified Java feature is supported in MATLAB.
3 % USEJAVA(LEVEL) returns 1 if the feature is supported and
4 % 0 otherwise.
5 %
6 % The following levels of support exist:
7 %
8 % LEVEL MEANING
9 % -----------------------------------------------------
10 % 'jvm' The Java Virtual Machine is running.
11 % 'awt' AWT components are available.
12 % 'swing' Swing components are available.
13 % 'desktop' The MATLAB interactive desktop is running.
14 %
15 % "AWT components" refers to Java's GUI components in the Abstract
16 % Window Toolkit. "Swing components" refers to Java's lightweight
17 % GUI components in the Java Foundation Classes.
18 %
19 % EXAMPLES:
20 %
21 % If you want to write an m-file that displays a Java Frame and want
22 % to be robust to the case when there is no display set or no JVM
23 % available, you can do the following:
24 %
25 % if usejava('awt')
26 % myFrame = java.awt.Frame;
27 % else
28 % disp('Unable to open a Java Frame.');
29 % end
30 %
31 % If you want to write an m-file that uses Java code and want it to
32 % fail gracefully when run in a MATLAB session that does not have access
33 % to a JVM, you can add the following check:
34 %
35 % if ~usejava('jvm')
36 % error([mfilename ' requires Java to run.']);
37 % end
38 %
39 % See also JAVACHK
40
41 % Copyright 1984-2004 The MathWorks, Inc.
42 % $Revision: 1.6.4.2 $ $Date: 2005/06/27 22:48:21 $
43
37 44 error(nargchk(1,1,nargin));
37 45 isok = system_dependent('useJava',feature);