Design a Data Structure

Some Workday coding rounds skip the puzzle. Instead you write a class, with a few public methods and a rule the class has to keep, like a size limit or an order. Some want a basic structure built from scratch, and others add one more rule on top.

Settle the method signatures before you write any bodies. Say what each method returns on a miss. Keep every field private. A wrong return value on a miss is one of the easiest ways to fail an answer that is otherwise right, so decide it out loud before you code.

Then the follow-up comes, often a second thread touching the class or a rewrite on top of a Java collection. If your signatures are clean, the change touches one method and leaves the others alone.

WorkdayPremium lesson · Coding round

The 4 Workday problems are below.

1. 1A Premium questionCoding · Medium · Frequently asked
2. 2A Premium questionCoding · Medium
3. 3A Premium questionCoding · Medium

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