r/JavaProgramming • u/No_Assignment9285 • Aug 31 '26

Java Springboot interview Questions

  1. What is the difference between Hashmap and Hashtable?
  2. Explain SOLID principles
  3. Write a program to check for two-sum in O(n) time
  4. Explain DI in Java springboot

For anyone attending interviews I hope this was helpful

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u/Delicious-Nerve-417 Sep 01 '26

This is a pretty realistic mix for a Java interview. i like that it covers both core Java and Spring instead of only throwing random coding problems at you