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How to convert String to Hex in Java

February 28, 2020January 20, 2010 by mkyong

Here are a few Java examples of converting between String or ASCII to and from Hexadecimal. Apache Commons Codec – Hex Integer Bitwise 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F 1. Apache Commons Codec Both Hex.encodeHex and Hex.decodeHex can convert String to Hex and vice versa. …

Java – Convert Character to ASCII

June 7, 2020December 1, 2009 by mkyong

In Java, we can cast the char to int to get the ASCII value of the char. char aChar = ‘a’; //int ascii = (int) aChar; // explicitly cast, optional, improves readability int ascii = aChar; // implicit cast, auto cast char to int, System.out.println(ascii); // 97 The explicit cast (int)char is optional, if we …