Given a text editor class, write the code for undoing and redoing text operations.
Software Engineer Backend Interview Questions
2,347 software engineer backend interview questions shared by candidates
Implement LRU Cache(solve the question)
Design a messaging system for Udacity.
- Building a Golang HTTP Api with Unit Testing (take home challenge)
Code a REST API using a database system. How would you about scaling it? What's the first thing that is going to break when you get millions of users? How would you shark the data? All AWS services. MongoDB. Difference between PUT and POST methods. Conflicts when there are multiple requests at the same time.
What is difference between abstract and interface. What is the difference between == and equals method in java. What is hashcode. How to write good hashcode. How does hashcode relate to equals method.
How to speed up performance on multiple data analysis on sql tables.
What is your experience with Java?
Random hackerrank questions, mostly was not hard.
Code walk-through: Read a piece of complex code and find out issues in it
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