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

Grasshopper

Related Links:
Author: Helene Martin (on 2011/12/14)

("Critter" classes come from the University of Washington's CSE 142 Critters homework assignment. See the assignment spec for more information.)

Write a critter class Grasshopper along with its movement and eating behavior. All unspecified aspects of Grasshopper use the default behavior. Write the complete class with any fields, constructors, etc. necessary to implement the behavior.

A Grasshopper sits still until getting into a fight. Once it fights, it celebrates its victory by doing a "hop". A "hop" consists of moving north a certain number of times, then south the same number of times, then west one time. The hops start with a height of 1 (one move north, then one move south) but each subsequent fight causes the next hop to be larger by one. The second hop is 2 moves north, 2 moves south, then 1 move west. After finishing the hop, the Grasshopper sits idle again until it gets into another fight.

If a Grasshopper is sitting still, it always fights with Attack.ROAR. If a Grasshopper gets into a fight in the middle of a hop (while it is not sitting still), it always returns Attack.FORFEIT, causing it to lose the fight.

Here is an example sequence of moves for one Grasshopper:

  • CCCCC (fights) NSWCCC (fights) NNSSWCCCCCCC (fights) NNNSSSWCC (fights) NNNNSS (fights and dies)
Type your solution here:


This is an inheritance problem. Write a Java class using inheritance. (You do not need to write any import statements.)

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.