Java Utililty Methods Text Parse

List of utility methods to do Text Parse

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Description

The list of methods to do Text Parse are organized into topic(s).

Method

bytetextToByte(char[] text)
text To Byte 
byte result = 0;
if (text.length == 2) {
    byte[] bytes = { charToByte(text[0]), charToByte(text[1]) };
    result = (byte) ((bytes[0] << 4) + bytes[1]);
return result;
byte[]textToBytes(String text)
Convert text to bytes 
byte[] baBytes = new byte[text.length() / 2];
for (int j = 0; j < text.length() / 2; j++) {
    Integer tmpInteger = Integer.decode(new String("0x" + text.substring(j * 2, (j * 2) + 2)));
    int tmpValue = tmpInteger.intValue();
    if (tmpValue > 127) 
        tmpValue = (tmpValue - 127) * -1;
    tmpInteger = new Integer(tmpValue);
    baBytes[j] = tmpInteger.byteValue();
return baBytes;
StringtextToCDATA(String text)
Converts a text string to HTML or XML entities. 
if (text == null)
    return "null";
final StringBuffer html = new StringBuffer();
for (int i = 0; i < text.length(); i++) {
    html.append(charToCDATA(text.charAt(i)));
return html.toString();
IntegertextToInteger(String filename, String text, String name)
text To Integer 
if (text == null || text.length() == 0) {
    throw new Exception("Bad integer. Filename= " + filename + ", name= " + name);
Integer intValue = null;
try {
    intValue = Integer.valueOf(text);
} catch (NumberFormatException e) {
    throw new Exception("Bad integer. Filename= " + filename + ", exception= " + e.toString());
...
IntegertextToInteger(String text)
text To Integer 
if (text == null || text.isEmpty())
    return null;
try {
    return Integer.valueOf(text);
} catch (NumberFormatException ex) {
    return null;
StringtextToMMDDYYYY(String pdata)
Converte a data para MM/DD/YYYY 
String aux = "";
if (!pdata.equals("__/__/____") && !pdata.equals(""))
    aux = pdata.substring(3, 5) + "/" + pdata.substring(0, 2) + "/" + pdata.substring(6);
return aux;
byte[]textToNumericFormat(String src)
Converts IPv4 address in its textual presentation form into its numeric binary form. 
if (src == null || src.length() == 0) {
    return null;
int octets;
char ch;
byte[] dst = new byte[INADDRSZ];
char[] srcb = src.toCharArray();
boolean sawDigit = false;
...
byte[]textToNumericFormatV4(String host)
text To Numeric Format V 
return sun.net.util.IPAddressUtil.textToNumericFormatV4(host);
byte[]textToNumericFormatV4(String ipString)
text To Numeric Format V 
String[] address = ipString.split("\\.", IPV4_PART_COUNT + 1);
if (address.length != IPV4_PART_COUNT) {
    return null;
byte[] bytes = new byte[IPV4_PART_COUNT];
try {
    for (int i = 0; i < bytes.length; i++) {
        bytes[i] = parseOctet(address[i]);
...
byte[]textToNumericFormatV4(String src)
text To Numeric Format V 
if (src.length() == 0) {
    return null;
byte[] res = new byte[INADDR4SZ];
String[] s = src.split("\\.", -1);
long val;
try {
    switch (s.length) {
...