String hex="ff"
String binString = hex -> bin
String addBinString = binString + N
String resultHex = addBinString -> hex
return resultHex
//16->2
public static String hexString2binaryString(String hexString) {
if (hexString.length() % 2 != 0) {
hexString = "0" + hexString;
}
String bString = "", tmp;
for (int i = 0; i < hexString.length(); i++) {
tmp = "0000" + Integer.toBinaryString(Integer.parseInt(hexString.substring(i, i + 1), 16));
bString += tmp.substring(tmp.length() - 4);
}
return bString;
}
//2->16
public static String binaryString2hexString(String bString) {
if (bString.length() % 8 != 0) {
String sbuwei = "00000000";
bString = sbuwei.substring(0, sbuwei.length() - bString.length() % 8) + bString;
}
StringBuilder tmp = new StringBuilder();
int iTmp = 0;
for (int i = 0; i < bString.length(); i += 4) {
iTmp = 0;
for (int j = 0; j < 4; j++) {
iTmp += Integer.parseInt(bString.substring(i + j, i + j + 1)) << (4 - j - 1);
}
tmp.append(Integer.toHexString(iTmp));
}
return tmp.toString();
}
public String addBinary(String a, String b) {
int carry = 0;
int sum = 0;
int opa = 0;
int opb = 0;
StringBuilder result = new StringBuilder();
while (a.length() != b.length()) {
if (a.length() > b.length()) {
b = "0" + b;
} else {
a = "0" + a;
}
}
for (int i = a.length() - 1; i >= 0; i--) {
opa = a.charAt(i) - '0';
opb = b.charAt(i) - '0';
sum = opa + opb + carry;
if (sum >= 2) {
result.append((char) (sum - 2 + '0'));
carry = 1;
} else {
result.append((char) (sum + '0'));
carry = 0;
}
}
if (carry == 1) {
result.append("1");
}
return result.reverse().toString();
}
String hexString = "00010203040506070809aabbccddeeff";
String binaryString = hexString2binaryString(hexString);
for (int i = 0; i < 10; i++) {
String addBinaryString = addBinary(binaryString, hexString2binaryString(String.valueOf(i)));
String addHexString = binaryString2hexString(addBinaryString);
System.out.println(addHexString);
}
00010203040506070809aabbccddeeff
00010203040506070809aabbccddef00
00010203040506070809aabbccddef01
00010203040506070809aabbccddef02
00010203040506070809aabbccddef03
00010203040506070809aabbccddef04
00010203040506070809aabbccddef05
00010203040506070809aabbccddef06
00010203040506070809aabbccddef07
00010203040506070809aabbccddef08
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