How do I convert a number (as a String) to an array of bytes in Java?

Posted by user1795595 on Stack Overflow See other posts from Stack Overflow or by user1795595
Published on 2012-11-02T22:43:05Z Indexed on 2012/11/02 23:00 UTC
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arrays

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string

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bytearray

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converter

I'm creating a method specific method for a java project i'm working on. The UML given specifies the return type to be of static byte[] that accepts the arguments (String, byte)

So far, looks like this:

public static byte[] convertNumToDigitArray(String number, byte numDigits) {

}

This method is supposed to convert a number (as a String) to an array of bytes. The ordering must go from most to least significant digits. For example, if the number String is “732” then index 0 of the array should contain 7.
The last argument (numDigits) should match the length of the string passed in.

How do I do this?

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