Asked 2 coding questions related to strings ......anagram and the 2nd non repeating character from the string. Got stuck because he asked me to write in Java only and ..in that I used map ...he told to.explain how this map function internally works

You get random call after completion of round 1,it's about basics of your role regarding tools,skills and other requirements of the role it's a screening process .Round 1 consisted of 2 coding question and mcqs