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You're welcome.

I've made some observations and suggestions, but I don't know that you need to worry about any of them for this project. Incorporating some of my suggestions requires a major change to your program...

This bit of code:
listTest.add(0);
listTest.add(1);
listTest.add(2);
listTest.add(3);
listTest.add(4);
// etc . . .
begs for a loop. You say you've learned these things, but knowing when to...

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You've learned arrays, so why don't you store the 26 values in each...