Eclipse强调我的代码是不正确的，但没有提供任何建议

I'm working on some homework, and I'm not asking for help on how to solve it. For some reason Eclipse underlines parts of my code indicating something is wrong; yet provides no suggestion like it normally would. I haven't declared a multi-dim array in some time, so the syntax eludes me though I did google it. It appears correct according to the results I got.I'm working on some homework, and I'm not askin