Sachin J questions

• JPA: Deleting detached instance
• Add Yes and No buttons on jQuery confirmation box
• How to dispatch request to "j_spring_security_check" from controller
• Spring MVC:How to get file path into Controller?
• How to explain multiple inheritance in Java [duplicate]
• How to validate xml with dtd using java?
• What is difference between class path , file system?
• How to filter input type="file" dialog by specific file type?

Sachin J answers