The first round was a coding challenge.

The second round consisted of two phone screenings that lasted 2.5 hours.

• The first phone screening tested behavioral questions, Java and OOPS concepts, and basic Java coding.
• The second phone screening re-evaluated coding skills and Java knowledge.

The third round was a 4-hour onsite interview, which included behavioral questions, Java and logical problem-solving questions, and testing knowledge of Selenium WebDriver.

1. The sum of numbers in an array.

2. Reverse a substring.

3. Longest contiguous repeating character in a string and its count.

4. Questions on UNIX commands, exception handling, and errors; interfaces and abstract classes; String literals, StringBuffer, StringBuilder; final and static concepts; different ways of creating an object in the case of inheritance and interfaces.

5. You have two candles. Each candle burns for 1 hour each. How can you measure 45 minutes using these two candles? Assume no measuring instruments are available.

6. You have 9 coins stacked one on another (8 are 1gm coins and 1 is a 2gm coin). How do you find the 2gm coin with the minimum number of weighings?

7. How to hover on the 3rd suggestion of your Google search (Selenium)? How to switch between multiple windows? Annotations in TestNG.