One of the worst interview experiences I've had.

It was a video call, and the interviewer began by asking irrelevant, rapid-fire Java questions.

They moved on to a CoderPad interview which involved:

• Converting an integer to binary representation in string form.
• Checking if a binary tree is balanced.
• Inorder traversal of a binary tree.

At one point during the coding part, I saw the interviewer falling asleep. I was shocked.

Also, the recruiter made it clear up front they cannot even match the market average in NYC.

Stay away.

Difference between StringBuilder and StringBuffer. Describe the Observer pattern. Explain what a String pool is. Convert an integer to its binary representation in string form. Check if a binary tree is balanced. Inorder traversal of a binary tree.