A possible CodeRunner question of the type "Write a class" could be the following.

Write a class with name Bear which meets the following requirements:

There is a constructor which takes three parameters of type Integer: age, weight, and sleepTime.

There is a method getWeight$()$ which returns the weight of the animal.

There is a method addSleepTime$($additionalTime$)$ which increases the sleepTime by additionalTime.

There is a method eat$()$ which returns the following String:

I eat

Your code is automatically checked with several test cases. One of them is listed here with the expected result.

For example:

Test Result

youngbear $=$ Bear$(2,15,180)$

print$("$Young bear is $"+$ str$($youngbear$.$age$)+"$ years old. His weight is $"+$ str$($youngbear$.$weight$)+"$ and his sleep time is $"+$ str$($youngbear$.$sleepTime$))$

youngbear.addSleepTime$(10)$

print$("$A few month ago, his sleep time was $"+$ str$($youngbear$.$sleepTime$))$

Young bear is $2$ years old. His weight is $15$ and his sleep time is $180$

A few month ago, his sleep time was $190$

Answer:$($penalty regime: $0\%)$