Java Binary to Text Algorithm?

Question

What kind of algorithm/method would you use to change a simple string to binary and vice-versa (In Java)?

Pls share more about problem definition. Also provide sample input — Dark Knight, Feb 17 '14 at 14:44
Changing "Hello" to Binary (01001000 01100101 01101100 01101100 01101111). — MrLolEthan, Feb 17 '14 at 14:54
A "simple String" is already binary, what else? What do you want? — Ingo, Feb 17 '14 at 15:01

score 2 · Accepted Answer · answered Feb 17 '14 at 14:47

2

str.getBytes() returns byte array,

String(byte[], java.lang.String) creates new String instance from byte array an charset.

I hope this helps...

answered Feb 17 '14 at 14:47

AlexR

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score 0 · Answer 2 · answered Feb 17 '14 at 14:45

0

Binary to text - Base64 encoding. Text to binary - Base64 decoding.

answered Feb 17 '14 at 14:45

RaviH

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Request to down voter - please enlighten me about the reason. Thanks. – RaviH Feb 17 '14 at 14:49

score 0 · Answer 3 · answered Feb 17 '14 at 14:57

You can use BigInteger to convert it to Hex and back.

    byte [] binary = new byte[] {0,1,2,3,4,5};
    System.out.println("Binary: "+Arrays.toString(binary));
    String asText = new BigInteger(binary).toString(16);
    System.out.println("Text: "+asText);
    byte[] asBinary = new BigInteger(asText, 16).toByteArray();
    System.out.println("Back to Binary: "+Arrays.toString(asBinary));

prints:

Binary: [0, 1, 2, 3, 4, 5]
Text: 102030405
Back to Binary: [1, 2, 3, 4, 5]

Hmmm - not a good technique - seems leading zeros are removed. — OldCurmudgeon, Feb 17 '14 at 15:23

Java Binary to Text Algorithm?

3 Answers3