Important Notice:

Practice-It will be discontinued as of November 1st, 2024. After this date, the website will remain online for a transitional period, but login will be restricted to University of Washington NetID authentication. This marks the next phase towards the platform's full retirement. Thank you for your use and support of the application over the years.

If you are looking for an alternative, a similar tool, CodeStepByStep, was developed independently by the original author of Practice-It, and is available at codestepbystep.com**

logo Practice-It logo

Main Page → Problems → Solve a Problem

rapperNames

Language/Type: Java Guava BiMap collections
Author: Marty Stepp (on 2013/01/22)

A company is hiring new employees, but they do not want to hire anyone who is a known rapper, because rappers are questionable characters. Write a method named rapperNames that accepts two parameters: a BiMap from people's names to their rapper nicknames, and a Set of possible interview candidates (strings). We don't want to interview the ones who are secretly rappers. You should return a new Set of which candidates the company would like to interview. If an interview candidate string is the real name or the rapper nickname of a known rapper, he/she should not be interviewed. For example, given this data:

  • rappers: {Marshall Mathers=Eminem, Shad Moss=Bowwow, Sean Combs=Diddy, Trevor Smith=Busta Rhymes, Michael Diamond=Mike D}
  • candidates: [Jim Jones, Eminem, Sean Combs, Suzy Smith, Michael Diamond, Busta Rhymes]

You would return the set [Jim Jones, Suzy Smith] to be interviewed.

Type your solution here:


This is a method problem. Write a Java method as described. Do not write a complete program or class; just the method(s) above.

You must log in before you can solve this problem.


Log In

If you do not understand how to solve a problem or why your solution doesn't work, please contact your TA or instructor.
If something seems wrong with the site (errors, slow performance, incorrect problems/tests, etc.), please

Is there a problem? Contact a site administrator.