Trying to figure out prime function
Answer questions 1 to 7
Complete testPrime method
Complete defix, sumSlice, and square methods
Modify questions #7
Completed all methods
Confirm that every method is working
Do a little formatting
Modify answer 1
Modify answeres
Fix tester Visual Studio error
Merge pull request #11 from luo-yu/luoy6

Luoy6 HomeWork#2