Hi, i can help you with what you are asking.
1. How much experience do you have with java?
i've experience with java desktop applications, java web (spring based) applications, using a lot of libraries, and making a lot of financial programs, that export data in excel files, or etls that migrate data form one database to other.
2. How long have you been programming?
i've been programming for about 10 years, 9 of them with java
3. Have you completed any similar tasks in the past?
i've work with json files, and random numbers to file any kind of arrays, what i would do this task is use json arrays for the airplane model, price etc (with a lot of values) and ramdomnly mixing them in the final data structure you need.
4. What is your favorite thing about your home country?
i live in a tropical country, so the weather is really good, also i can go to the beach or to a montain in less than 40 minutes, so is pretty nice