| Methods Summary |
|---|
| public static byte[] | ascii2binary(java.lang.String str)Translates a stringified representation in a binary one. The passed string is an hexadecimal one starting with 0x.
if(str == null) return null;
String val = str.substring(2);
int size = val.length();
byte []buf = new byte[size/2];
byte []p = val.getBytes();
for(int i = 0; i < (int) (size / 2); i++)
{
int j = i * 2;
byte v = 0;
if (p[j] >= '0" && p[j] <= '9") {
v = (byte) ((p[j] - '0") << 4);
}
else if (p[j] >= 'a" && p[j] <= 'f") {
v = (byte) ((p[j] - 'a" + 10) << 4);
}
else if (p[j] >= 'A" && p[j] <= 'F") {
v = (byte) ((p[j] - 'A" + 10) << 4);
}
else
throw new Error("BAD format :" + str);
if (p[j+1] >= '0" && p[j+1] <= '9") {
//System.out.println("ascii : " + p[j+1]);
v += (p[j+1] - '0");
//System.out.println("binary : " + v);
}
else if (p[j+1] >= 'a" && p[j+1] <= 'f") {
//System.out.println("ascii : " + p[j+1]);
v += (p[j+1] - 'a" + 10);
//System.out.println("binary : " + v+1);
}
else if (p[j+1] >= 'A" && p[j+1] <= 'F") {
//System.out.println("ascii : " + p[j+1]);
v += (p[j+1] - 'A" + 10);
//System.out.println("binary : " + v);
}
else
throw new Error("BAD format :" + str);
buf[i] = (byte) v;
}
return buf;
|
| public static java.lang.String | binary2ascii(byte[] data, int length)Translates a binary representation in an ASCII one. The returned string is an hexadecimal string starting with 0x.
if(data == null) return null;
final int size = (length * 2) + 2;
byte[] asciiData = new byte[size];
asciiData[0] = (byte) '0";
asciiData[1] = (byte) 'x";
for (int i=0; i < length; i++) {
int j = i*2;
int v = (data[i] & 0xf0);
v = v >> 4;
if (v < 10)
asciiData[j+2] = (byte) ('0" + v);
else
asciiData[j+2] = (byte) ('A" + (v - 10));
v = ((data[i] & 0xf));
if (v < 10)
asciiData[j+1+2] = (byte) ('0" + v);
else
asciiData[j+1+2] = (byte) ('A" + (v - 10));
}
return new String(asciiData);
|
| public static java.lang.String | binary2ascii(byte[] data)Translates a binary representation in an ASCII one. The returned string is an hexadecimal string starting with 0x.
return binary2ascii(data, data.length);
|
