Computer Science Homework Help

I need help debugging this program so it will run. I’m sure it’s simple, as it is directly from the book and should work as-is, but something is off.

Debugger Log:

====================[ Build | ch12 | Debug ]====================================

“C:Program FilesJetBrainsCLion 2019.2bincmakewinbincmake.exe” –build C:UserspersonCLionProjectsch12cmake-build-debug –target ch12 — -j 2

[ 20%] Linking CXX executable ch12.exe

c:/mingw/bin/../lib/gcc/mingw32/8.2.0/../../../../mingw32/bin/ld.exe: CMakeFilesch12.dir/objects.a(main.cpp.obj): in function `main’:

C:/Users/person/CLionProjects/ch12/main.cpp:10: undefined reference to `orderedArrayListType::orderedArrayListType(int)’

c:/mingw/bin/../lib/gcc/mingw32/8.2.0/../../../../mingw32/bin/ld.exe: C:/Users/person/CLionProjects/ch12/main.cpp:10: undefined reference to `orderedArrayListType::~orderedArrayListType()’

c:/mingw/bin/../lib/gcc/mingw32/8.2.0/../../../../mingw32/bin/ld.exe: C:/Users/person/CLionProjects/ch12/main.cpp:10: undefined reference to `orderedArrayListType::~orderedArrayListType()’

collect2.exe: error: ld returned 1 exit status

mingw32-make.exe[3]: *** [ch12.exe] Error 1

CMakeFilesch12.dirbuild.make:129: recipe for target ‘ch12.exe’ failed

mingw32-make.exe[2]: *** [CMakeFiles/ch12.dir/all] Error 2

CMakeFilesMakefile2:71: recipe for target ‘CMakeFiles/ch12.dir/all’ failed

CMakeFilesMakefile2:83: recipe for target ‘CMakeFiles/ch12.dir/rule’ failed

mingw32-make.exe[1]: *** [CMakeFiles/ch12.dir/rule] Error 2

mingw32-make.exe: *** [ch12] Error 2

Makefile:117: recipe for target ‘ch12’ failed