CODEWITHSUNDEEP
javaarraysandroid-studio
Paras Rajora
Paras Rajora

Reputation: 37

2 Strings into 1 byte array

I need to know how to convert two strings into a single byte array. For example, I need to take two numeric values using two Edittext where one is 850011 and another is 1005.

I need to put this into a single byte array so that byte array will automatically become something like below if I do it manually:

byte[] data = new byte[5];
data[0]=(byte)0x85;
data[1]=(byte)0x00;
data[2]=(byte)0x11;
data[3]=(byte)0x10;
data[4]=(byte)0x05;

How to do it foolproof?

Upvotes: 0

Views: 166

Answers (1)

Richard Kotal
Richard Kotal

Reputation: 189

You can try using something like:

public  byte[] convert(String a, String b) {
   int radix = 16; //for hexadecimal conversion
   //int radix = 10; //for decimal conversion

    String str = a + b;
    byte[] result = new byte[str.length() / 2];

    for (int i = 0; i < result.length; i++) {
        int index = i * 2;
        int j = Integer.parseInt(str.substring(index, index + 2), radix);
        result[i] = (byte) j;
    }
    return result;
}

Upvotes: 1

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