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Question 16:

You have just started a new job working for a top finance company and you have been asked to provide a user-friendly interface to an existing mainframe application. You don't have any access to the mainframes source code. What is the best technique for this?


It can't be done.

Use a screen scraper.

Re-write the main frame using Java and high-end Unix servers. Although it may take some time to do this in the long run this will benefit the company.

Write a Java front end then use CORBA to communicate with the mainframe.

Use the Java Native Interface (JNI) to communicate with the mainframe.

Use object mapping.