我有一个由十六进制值组成的字节数组,例如CA, FA, 21, 33
但我想将它们作为单个元素CAFA2133
列在JList
中。
为了将它们列在JList中,我认为我需要将它转换为字符串
。
那么您有什么建议吗?
我有一个由十六进制值组成的字节数组,例如CA, FA, 21, 33
但我想将它们作为单个元素CAFA2133
列在JList
中。
为了将它们列在JList中,我认为我需要将它转换为字符串
。
那么您有什么建议吗?
public static String bytesToHex(byte[] in) {
final StringBuilder builder = new StringBuilder();
for(byte b : in) {
builder.append(String.format("%02x", b));
}
return builder.toString();
}
public static String bytesToHex(byte[] bytes) {
final char[] hexArray = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
char[] hexChars = new char[bytes.length * 2];
int v;
for ( int j = 0; j < bytes.length; j++ ) {
v = bytes[j] & 0xFF;
hexChars[j * 2] = hexArray[v >>> 4];
hexChars[j * 2 + 1] = hexArray[v & 0x0F];
}
return new String(hexChars);
}
private static String convertToHexString(byte[] data) {
StringBuffer buf = new StringBuffer();
for (int i = 0; i < data.length; i++) {
int halfbyte = (data[i] >>> 4) & 0x0F;
int two_halfs = 0;
do {
if ((0 <= halfbyte) && (halfbyte <= 9))
buf.append((char) ('0' + halfbyte));
else
buf.append((char) ('a' + (halfbyte - 10)));
halfbyte = data[i] & 0x0F;
} while(two_halfs++ < 1);
}
return buf.toString();
}
byte[] array = /* initialization */;
int x = 0;
for (int i = 0, l = Math.min(array.length, 4); i < l; i++) {
x <<= 8;
x |= (array[i] & 0xFF);
}
String hex = Integer.toString(x, 16);
import java.util.HashMap;
public class NumUtil
{ private static HashMap<Byte,char[]>byteToHex=new HashMap<Byte, char[]>();
static
{ for(int i=0;i<16;++i)
byteToHex.put((byte)i, new char[]{'0',Integer.toHexString(i).charAt(0)});
for(int i=16;i<256;++i)
byteToHex.put((byte)i, Integer.toHexString(i).toCharArray());
}
public static String toHexString(byte[]bytes)
{ StringBuilder stringBuilder = new StringBuilder(bytes.length*2);
for(byte b:bytes)
stringBuilder.append(byteToHex.get(b));
return stringBuilder.toString();
}
}