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Senior Developer Java Interview Questions

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5,290 senior developer java interview questions shared by candidates

1. 100 doors task (first all doors closed, then open every door, then switch every 2nd door, then switch every 3rd door etc till 100th door. Find if nth door is opened or closed). 2. Java test questions (i.g. is this piece of code compilable, write the compareTo method to sort by last name, then by first name). 3. 27 horses, 3 tracks. Find the fastest horse and the second one by making minimum competitions between horses. Each horse always run with the same speed.
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Senior Java Developer

Interviewed at Interactive Brokers

3.4★
Apr 19, 2014

1. 100 doors task (first all doors closed, then open every door, then switch every 2nd door, then switch every 3rd door etc till 100th door. Find if nth door is opened or closed). 2. Java test questions (i.g. is this piece of code compilable, write the compareTo method to sort by last name, then by first name). 3. 27 horses, 3 tracks. Find the fastest horse and the second one by making minimum competitions between horses. Each horse always run with the same speed.

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