I am working towards an android application. I need to use a web service. I have a wsdl file but I want to convert that into java so that I can use its functions in my Java
You can use the eclipse plugin as suggested by Oscar earlier. Or if you are a command line person, you can use Apache Axis WSDL2Java tool from command prompt. You can find more details here http://axis.apache.org/axis/java/reference.html#WSDL2JavaReference