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Shane iamenahs

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jdcrensh / Base62.java

Last active October 25, 2025 18:48

Class to encode a string into base 62 (character set [a-zA-Z0-9]) with Java. A common use case is URL shortening.

	public class Base62 {

	public static final String ALPHABET = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";

	public static final int BASE = ALPHABET.length();

	private Base62() {}

	public static String fromBase10(int i) {
	StringBuilder sb = new StringBuilder("");