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Java interview questions in C1 India, Excell India and McAfee

1. What does it mean to make type casting :) like up casting and down casting?
2. Why java applications have less execution time and have fast running on time?
3. What is the difference between awt and swing? Why have we moved towards java swing?
4. Why have we integrated database connectivity in Java applications?
5. What is thin driver of jdbc?
6. Can be create key_ Value pairs of array list?
7. Where do you use socket programming and why?
8. Have you ever need only class file in necessary applications?