Information Technology Consultant Interview Questions

4,348 information technology consultant interview questions shared by candidates

Q.1) What is method overriding and overloading . Q.2) Difference between Hashmap and HashSet? Q.3) Why are strings immutable in Java? Q.4) What is serialisation? Q.4) Write code for palindrome Q.4) Write code for finding duplicates in an array Q.5) Write code for finding permutations of a string Q.6) There is a 4 min hour glass and 7 min hour glass; measure 9 minutes with using them Q.7) One question regarding JDBC.
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IT Consultant

Interviewed at Oracle

3.5
Feb 17, 2022

Q.1) What is method overriding and overloading . Q.2) Difference between Hashmap and HashSet? Q.3) Why are strings immutable in Java? Q.4) What is serialisation? Q.4) Write code for palindrome Q.4) Write code for finding duplicates in an array Q.5) Write code for finding permutations of a string Q.6) There is a 4 min hour glass and 7 min hour glass; measure 9 minutes with using them Q.7) One question regarding JDBC.

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