Question

I want to know that is it possible to get the classes, functions/methods available in a java package from C#. Suppose I have a java package p which contains SampleClass. I want to inspect this package from C# so that I can get SampleClass. I do not want to use this class in C# in fact I just want to get the name of the available classes and functions.

Hope this is possible!

Thanks

Answer 1

Assuming that you have a JDK installed, you can use ‘jar -tf jarName.jar’ to get a list of classes, which you can then parse.

To get more information about a particular class, you can use the command-line ‘javap’ utility to print out a list of all methods and fields. This is in a fairly easily parsable format. For example:

javap -classpath . com.prosc.io.ZipCreator
Compiled from "ZipCreator.java"
public class com.prosc.io.ZipCreator extends java.lang.Object{
    public com.prosc.io.ZipCreator();
    public java.lang.Integer getLevel();
    public void setLevel(java.lang.Integer);
    public void createZip(java.io.File, java.io.File)       throws java.io.IOException;
    public void createZip(java.io.File, java.util.zip.ZipOutputStream)       throws java.io.IOException;
    public void setMaximumZipSize(long);
    static {};
}