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Hexadecimal Decimal Binary and Octal Converter allows you to convert the same number between its representations under different number systems. You can choose lenght of numbers from 8 to 32 bits. From / to ASCII characters you can convert only 8-bits numbers.
The Java Tutorials are practical guides for programmers who want to use the Java programming language to create applications. They include hundreds of complete, working examples, and dozens of lessons. Groups of related lessons are organized into "trails".