How to use javap with jar files ?

how to use javap with jar files ?
thanks

As long as the jar is on the class path, your gold. So,
javap -classpath myjar.jar mypackage.MyClass
Chuck

Similar Messages

Applet : How to use Images in Jar file

I want to put all images into a jar file to improve speed of loading.
But how to invoke images from Jar file?
Thanks.

@Op. It's very important for a developer to know how to find information, and that skill usually comes with experience. Google is one of the best ways to find information and solutions to the most common problems.
Kaj

How to use 3rd party jar files for xml transform

Hi all,
Am using OAS9.0.4 and I deployed my .ear successfully.
In my application am using 4 jar files for xml transformation. (xerces.jar, xalan.jar, xml-apis.jar,xercesImpl.jar)
OAS has its own xmlparserv2.jar file. Its using this jar file for transforming xml data and not even looking for above mentioned 4 jar files.
In opmn.xml, I provided these 4 jar files in to class path. Then also it didn't effect my output.
I also tried as put these 4 jar files into j2ee\home\applib directory, but o result.
Can anybody tell me where should I keep these 4 jar files in OAS and OAS should use these 4 jar files instead of its own xmlparserv2.jar for transforming data.
Thanks in Anticipation,
Regards,
RK

Add the Xbootclasspath variable in the java-options field. It will somewhat look like the following in your opmn.xml file
<process-type id="<OC4J Instance Name>" module-id="OC4J">
<module-data>
<category id="start-parameters">
<data id="java-options value="........... -Xbootclasspath^/a:<location of your jar files>" />
Ensure to use th ^/a (append) signature
Regards,
Chirag

How to use a packaged Jar File?

Greetings to everyone reading this post!
I have a query about a thing that seems to be basic but I don't know how to accomplish, here it goes:
I have packaged a Simple application into a Jar file. this application contains a package like this:
lib.demo, inside this package I have a Class named MyClass with some simple methods like this one:
public void sayHi(String name){
//implementation here
}Now, I would like to Know how to use the Method sayHI(String name) from an entirely different Project. I have successfully included the Jar File as a Library(in the new Project), but I have I no Clue on How to invoke a Class inside my Jar library, and more Importantly, a method.
Could anybody help me?

if the "project" (not a Java-related system, it's IDE-specific) already includes the JAR file in its classpath (library), then all you need is to import the package/class and invoke the method, as such:
// in your client code:
import lib.demo.*;         // or, import lib.demo.MyClass;
public class Test {
public void inAMethod() {
    MyClass myC = new MyClass();
    myC.sayHi("say hi");
}simple.

How to use external libraries jar files in the composite application?

Hi,
I have some external jars files (which consists of java classes) that I would like to use in my composite application.
I have created a DC with type as external library for the jars. However, I don't know how to specify the DC to be used in my caf application.
Can anyone help?
Thanks.
Regards,
Fui Voon

Hi,
My jar files consists only java classes and a manifest.mf. The files are compiled using jdk 1.4.2-b28. Will this be any issue?
It seems that if I ignore the error and continue step 7 which is to do deployment of the ear, the error given is
Cannot update it.
Caused by: com.sap.engine.library.bytecode.cf.CFException: Invalid constant pool tag, 60 at index 41.
Does anyone know what that mean?
Is there any sample that teach how to deploy external libraries as bundled library?
Thanks.
Regards,
Fui Voon

Plz suggest me How to use Third party jar files in ODI

Hi all,
I need to know how to use the third party jar files or our own customised jar file in ODI.
regards
palash

Hi all,
I am unable to implement..................
I have one question, if I add any type 4 coneection supported jar file in my ODI_CLASSPATH can I use them in writing procedure to connect Databases
I am trying to connect Oracle database by putting Ojdbc14.jar in the class path of ODI_CLASSPATH so that in my procedure I can use it .............but failed I dont know how to solve this problem.
another thing Open Tools are delivered as a Java package (.zip or .jar) containing several files:
A compiled Java .class file
Other resources, such as icon files is it so ..............Then I can use full java apllication by preparing required bunch of classes and by set them appropriately in open tool
need ur suggestion....
regards
palash

How to use packages and jar files for applet?

Hi!
My applet takes a class say a.class.
Now this class depends on other classes that are packaged
in a directory and put separately.
I want to put this applet on the web.
So how do I manage the .class files in he package.
I have tried using jar file format.But I was not able to get it working.
Can someone please help me?
Thanks

Use Archive instead of codebase:
<APPLET CODE="MyApplet.class" ARCHIVE="MyApplet.jar" WIDTH=400 HEIGHT=300></APPLET>

Learning how to use C++ with Matlab files

Hi guys!
I'm Ph.D student who needs to run thousands of mathematical simulations. Actually I'm working in MatLab, but due the massive quantity of simulations, I decided to make some tests in C++ in order to improve the time of the computations.
Well the thing is that all my data it's in mat files (Matlab filetype) and i tried three things for access them:
Use the library <fstream> but i found extremely complicated, specially with double numbers. (In fact i have to convert all my data to a text raw file)
Use the native API of C++ from Matlab, but i get the error
Warning: You are using gcc version "4.5.2". The version
currently supported with MEX is "4.3.4".
For a list of currently supported compilers see:
http://www.mathworks.com/support/compilers/current_release/
and until now i don't know how to resolve it.
Finally i found one library http://sourceforge.net/projects/matio/ which in theory can handle mat files in C++ but I haven't could make it work in this test example http://na-wiki.csc.kth.se/mediawiki/index.php/MatIO:
#include <matio.h>
int main(void)
const double a[5] = {43.5, 5432.434, 3.32, 0.0001, 88834.0};
mat_t *mat;
matvar_t *matvar;
int dims[2] = {1,5};
mat = Mat_Open("simple.mat",MAT_ACC_RDWR);
if(mat)
matvar = Mat_VarCreate("vec1",MAT_C_DOUBLE,MAT_T_DOUBLE,2,dims,a,0);
Mat_VarWrite( mat, matvar, 0);
Mat_VarFree(matvar);
Mat_Close(mat);
else
return 1;
return 0;
because i get this:
/home/mikesol/projects/test/build> make
Scanning dependencies of target test
[100%] Building CXX object CMakeFiles/test.dir/main.cpp.o
/home/mikesol/projects/test/main.cpp: In function ‘int main()’:
/home/mikesol/projects/test/main.cpp:16:73: error: invalid conversion from ‘const void*’ to ‘void*’
/home/mikesol/projects/test/main.cpp:16:73: error: initializing argument 6 of ‘matvar_t* Mat_VarCreate(const char*, int, int, int, int*, void*, int)’
make[2]: *** [CMakeFiles/test.dir/main.cpp.o] Error 1
make[1]: *** [CMakeFiles/test.dir/all] Error 2
make: *** [all] Error 2
*** Failed ***
i'm not so good in C++ to improve the code or know what is wrong. I'm sorry for that.
Summarizing: I'm stuck, so any help will be welcome.
Thanks in advance.

thanks to all,
@ngoonee: I'm going to try the solution described in your post https://bbs.archlinux.org/viewtopic.php?id=86809.
@tavianator: Thanks for the solution, but now there are some "undefined reference" in the compilation
/home/mikesol/projects/test/build> make
[100%] Building CXX object CMakeFiles/test.dir/main.cpp.o
Linking CXX executable test
CMakeFiles/test.dir/main.cpp.o: In function `main':
/home/mikesol/projects/test/main.cpp:14: undefined reference to `Mat_Open'
/home/mikesol/projects/test/main.cpp:18: undefined reference to `Mat_VarCreate'
/home/mikesol/projects/test/main.cpp:19: undefined reference to `Mat_VarWrite'
/home/mikesol/projects/test/main.cpp:21: undefined reference to `Mat_VarFree'
/home/mikesol/projects/test/main.cpp:22: undefined reference to `Mat_Close'
collect2: ld returned 1 exit status
make[2]: *** [test] Error 1
make[1]: *** [CMakeFiles/test.dir/all] Error 2
make: *** [all] Error 2
*** Failed ***
I will return later to work in that. Thanks to all.

How do Classpaths work with JAR files?

Hey all,
I have in the manifest file a path to a folder, plugins. In it I have a dir and files myDir/*.* so when unzipped it has <install-dir>/plugins/myDir/*.*. In the MF file I indicate the plugins dir as part of the class-path. When I want to load a .class file from the myDir/ dir below plugins, and the classes in there do NOT have package names in them, how is that done? Every time I try to access a file via Class.forName() it says ClassNotFoundException. If I hard-code the string as "myDir/myplugin" or use package identifer "myDir.myplugin" it still doesn't work. I don't want to unzip a ton of files from each plugin in one dir. I want a more organized way of storing them. However, because plugins can be added after the file is unzipped, I can't specify all the locations of plugins/<dir> dir's in the MF file if more are added later. Is there a way to locate and load a class in ANY dir, even those that are NOT in the class-path? Please help me out if you know. Thanks.

You have two options:
1) Add a Class-Path entry for each plug-in directory, not just the plugins.
Class-Path: plugins/myDir plugins/yourDir2) Go ahead and put the plug-ins in separate packages - package handling makes doing plug-ins easier in the long run. Two ways:
package plugins.myDir; // no Class-Path entry requiredor
package myDir; // which works with your current Class-Path

How can i rename a jar file using only java code

i have tried everything i can think of to accomplish this but nothing works.

ghostbust555 wrote:
In case you geniuses haven't realized I said I tried everything I can think of not that I tried everything. So help or shut up I realize that I didn't try everything but if you can't figure it out either DO NOT POST.
And the question is how can i rename a jar file using java code? As it says in the title. Read.I would tell you to use the File.renameTo method, but surely that would have been obvious, and you would have tried it already? But maybe you didn't. You were kind of lacking in details in what you tried.
And yes, I am a genius. Just don't confuse "genius" with "mind-reader".

How can I make my source code with jar file?

I use JDK1.6.0. I can open a class file from rt.jar and get its source code. Does this because open source JDK? I wander how I can make my jar file with source code.

CeciNEstPasUnProgrammeur wrote:
youhaodiyi wrote:
But why I can read source code from rt.jar? I found there are only class files in it.I say it's highly likely that you can't and your IDE's settings rather automatically refer to the src.zip file in the JDK's directory.I see. That's true. I use eclipse as the source code reader. It may refer to the source code zip file automatically.
Thanks all.

How i can deal with oracle file by using php api

how I can deal with oracle file by using php api ?

What has this to do with Reflections and Reference Objects?

Help:how to use java.util.jar to zip or unzip a binary file.

how to use java.util.jar to zip or unzip a binary file or a file contain native code.

It may help you to know how I add JARs
1. I open my Project (myProject)
2. I Mount the JAR to the FileSystem (like mypackages.jar = which includes com.mus.de.myClass.java)
3. I Mount the File to the FileSystem (like c:\..myfiles..\myProject)
3.1 I add the File to my Project
4. I select File | New -> Classes | Main
4.1 I typed "import com.mus.de.myClass.java" to refer to this package.
4.2 I called some of the public methods
thats it
Andreas

How to access the database jar file using the derby 10.2.1.6 database ?

Hi,
How to access the database jar file using the derby 10.2.1.6 database ?
I have used like below. And i am getting the following the error:
"org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver class 'org.apache.derby.jdbc.EmbeddedDriver'
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1136)"
My context.xml file looks like this:
<Context crossContext="true">
<Resource name="jdbc/derby" auth="Container"
type="javax.sql.DataSource" driverClassName="org.apache.derby.jdbc.EmbeddedDriver"
url="jdbc:derby:jar(\CalypsoDemo\database.jar)samples"
username="xxx" password="xxx" maxActive="20" maxIdle="10"
maxWait="-1"/>
</Context>
What could be the reason.?
Any suggestions will be appriciated.
Thanks in Advance,
Gana.

ya, I have restarted. Can you please tell me whether the path which i am giving is right or not in the context file?
Thanks,
Gana.

How can i run a jar file as EXE on mouse click..

*{color:#0000ff}how can i run a jar file as EXE on mouse click..is it possible in any way?????????{color}*

amrit_j2ee wrote:
*{color:#0000ff}how can i run a jar file as EXE on mouse click..is it possible in any way?????????{color}*Do you mean converting it from a jar file to an EXE file or do you mean that you would like to run the application by just double clicking it?
If it's the latter then you need to make the jar file including a manifest.
The manifest can be just a txt file with its content to be something like this:
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.1
Created-By: Somebody
Main-Class: NameOfTheMainClass
Class-Path:
X-COMMENT: Main-Class will be added automatically by buildTo make the jar file including the manifest, use something like this in your command prompt (of course you must have compiled your java file(s) first):
jar cfm test.jar MANIFEST.txt NameOfTheMainClass.classAfter that you'd be able to run your application just by double clicking it.
If you're a NetBeans user, you can build your standalone application by right-clicking your project and then going to properties => run => and choosing a Main class. After that right click on that project and "Clean and Build", locate the jar file in the "dist" folder and double click it =]
Hope it helps,
LD

How to use javap with jar files ?

Similar Messages

Maybe you are looking for