Base32 encoding and decoding using Apache Commons

This example shows how to encode a String in Base32 and then decode it back to a readable String again.
The Apache Commons Codec library contains a class to do just that. The class have several constructors and first we will use the default constructor without parameters to do our base32 encoding / decoding.

The output from the code above looks like this:

You can also split the encoded value on several lines. To do that we use another constructor of the Base32 class that takes a number specifying how long each line should be, like this:

The output will in this case look like this:

There are also other constructors to set for example which characters to use for line breaks. The default values for line breaks (as used above) is CRLF (or “\r\n”).

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