HCLTech interview question

Singleton class example Factorial recursion Max salary sql query Get and post difference in rest API Selenium window handle code And few more. Got selected in test. Had an interview. Asked multiple questions related to java selenium testng maven. Told to wait for some time and will move it to next round. I waited for an hour and went to the guy who was handling interview process and at the same time who took my interview came to that guy and Informed him that I can leave for the day. This is ridiculous. Worst ever interview and the worst company. Dont attend at all.