Sudoku puzzles use 9 x 9 grid in which each column, row, and 3 x 3 sub-grids must contain all digits from 1 to 9.
This project is a multi-threaded application that determines whether the solution to a Sudoku puzzle is valid
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A binary tree which displays in pre-order binary
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An online shopping cart using customer ID which links to an account. Each user account has a shopping cart and current orders
Login and password required
JUnit testing implemented
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Program that finds and counts the number of duplicates within an array
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