JEP Draft: Switch Expressions for the Java Language

Add switch expressions to the Java Programming Language, and improve the handling of null values in switch statements. These will simplify everyday coding, as well as prepare the way for the use of pattern matching in switch. Read more

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Check If Valid Sudoku Blocks in Java

The challenge of solving valid Sudoku blocks Determine if a 9×9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: Each row must contain the digits 1-9 without repetition. Each column must contain the digit... (more…)

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