Bloomberg Software Developer interview questions

I was contacted by HR to set up the technical phone interview along with a screen share. I was provided with a hackerrank link but it was not a hackerrank question but was a text editor to be use during the phone interview. I was asked questions on hashtable and its complexity

Phone call Interview. The interview started questioning my interest in the company follow by questions about a programming language. They ask how the java VM, and OO concepts as Inheritance, polimorfism. Finally they ask to solve a search in amplitude on a binary tree.