I want to fetch publication structure using core-services (java) from SDL Trdion13. what i need to do for this?
Given your question is rather vague... here's my best answer:
- You need to find a way to connect to Core Service from Java. Either generate a proxy from the wsdl as documented here or use a pre-built one from the community
- Ask Tridion for a list of publications using the Core Service API, using something similar to this
- Ask additional questions based on where you get stuck.