View All num of num See all Photos Groupon This employer has taken extra steps to respond to reviews and provide job seekers with accurate company information, photos, and reviews. Interested for your company?Learn More. www.groupon.com Employer Engaged Overview Reviews Salaries Interviews Jobs Photos Benefits 760 Reviews 1.2k Salaries 427 Interviews 219 Jobs Follow Add Review or Salary Follow Add Review or Salary Interview Question Software Development Engineer Interview Groupon 1) How do you serialize and deserialize a list of strings . Come up with an efficient algorithm and code the solution in the language of your choice. 2) Differenece between a string , StringBuilder and StringBuffer Tags: See more , See less 8 Answer Add Tags Answer Add Answers or Comments To comment on this, Sign In or Sign Up.