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toHexString
public static String toHexString(int i) returns the string representation of an integer parameter in the form of a hexadecimal unsigned integer.
If the parameter is negative, the unsigned integer value is the parameter plus 232; otherwise it is equal to the parameter. Converts the value to a hexadecimal (base 16) ASCII numeric string without leading 0s. If the size value of an unsigned number is zero, it is represented by a zero character '0' ('\u0030'); otherwise, the first character in the representation of the size of an unsigned number will not be a zero character. Use the following characters as hexadecimal numbers:
0123456789abcdef
The range of these characters is from '\u0030' to '\u0039' and from '\u0061' to '\u0066'. If you want uppercase letters, you can call the String.toUpperCase() method on the result:
Integer.toHexString(n).toUpperCase()
Parameters:
i - the integer to be converted to a string.
Returns:
The string representation of the unsigned integer value represented by the hexadecimal (base 16) argument.
// Convert string to hexadecimal encoding
public static String toHexString(String s)
{
String str="";
for (int i=0;i9d8c36668752c6e554acbc0b69e03110>4 ));
sb.append(hexString.charAt((bytes[i]&0x0f)>>0));
}
return sb.toString();
}
/*
* Decode hexadecimal numbers into strings, applicable to all characters (including Chinese)
*/
public static String decode(String bytes)
{
ByteArrayOutputStream baos= new ByteArrayOutputStream(bytes.length()/2);
//Assemble each 2-digit hexadecimal integer into one byte
for(int i=0;i
return new String( baos.toByteArray());
}
Second method:
Print the specified byte array to the console in hexadecimal form
package com.nantian.iclient.atm.sdb; public class Util { public Util() { } /** * 将指定byte数组以16进制的形式打印到控制台 * @param hint String * @param b byte[] * @return void */ public static void printHexString(String hint, byte[] b) { System.out.print(hint); for (int i = 0; i < b.length; i++) { String hex = Integer.toHexString(b[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } System.out.print(hex.toUpperCase() + " "); } System.out.println(""); } /** * * @param b byte[] * @return String */ public static String Bytes2HexString(byte[] b) { String ret = ""; for (int i = 0; i < b.length; i++) { String hex = Integer.toHexString(b[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } ret += hex.toUpperCase(); } return ret; } /** * 将两个ASCII字符合成一个字节; * 如:"EF"--> 0xEF * @param src0 byte * @param src1 byte * @return byte */ public static byte uniteBytes(byte src0, byte src1) { byte _b0 = Byte.decode("0x" + new String(new byte[]{src0})).byteValue(); _b0 = (byte)(_b0 << 4); byte _b1 = Byte.decode("0x" + new String(new byte[]{src1})).byteValue(); byte ret = (byte)(_b0 ^ _b1); return ret; } /** * 将指定字符串src,以每两个字符分割转换为16进制形式 * 如:"2B44EFD9" --> byte[]{0x2B, 0x44, 0xEF, 0xD9} * @param src String * @return byte[] */ public static byte[] HexString2Bytes(String src){ byte[] ret = new byte[8]; byte[] tmp = src.getBytes(); for(int i=0; i<8; i++){ ret[i] = uniteBytes(tmp[i*2], tmp[i*2+1]); } return ret; } }
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