Java Utililty Methods String Substritute

List of utility methods to do String Substritute

  1. HOME
  2. Java
  3. S
  4. String Substritute

Description

The list of methods to do String Substritute are organized into topic(s).

Method

Stringsubstitute(String strSource, String strValue, String strBookmark)
This function substitutes all occurences of a given bookmark by a given value 
StringBuffer strResult = new StringBuffer();
int nPos = strSource.indexOf(strBookmark);
String strModifySource = strSource;
while (nPos != -1) {
    strResult.append(strModifySource.substring(0, nPos));
    strResult.append(strValue);
    strModifySource = strModifySource.substring(nPos + strBookmark.length());
    nPos = strModifySource.indexOf(strBookmark);
...
Stringsubstitute(String template, String[] values)
Performs variable substitution on a template string. 
StringBuilder buff = new StringBuilder();
int maxUsed = 0;
char[] t = template.toCharArray();
for (int i = 0; i < t.length; i++) {
    if (t[i] == '$' && i < t.length - 1) {
        if (t[i + 1] == '$') {
            buff.append('$');
            i++;
...
Stringsubstitute(String txt, String pattern, String sub)
substitute 
int o = 0;
for (;;) {
    o = txt.indexOf(pattern, o);
    if (o < 0)
        break;
    txt = txt.substring(0, o) + sub + txt.substring(o + pattern.length());
    o += sub.length();
return txt;
StringsubstituteAll(String regexp, String subst, String target)
substitute All 
return target.replaceAll(regexp, subst);
StringsubstituteBlanks(String s, String subst)
substitute Blanks 
StringBuffer sb = new StringBuffer();
for (int i = 0; i < s.length(); i++) {
    if (s.charAt(i) != ' ') {
        sb.append(s.charAt(i));
    } else {
        sb.append(subst);
return sb.toString();
String[]substituteCommandLine(String[] parsedCommandLine, String file1Name, String file2Name, String display1, String display2)
substitute Command Line 
for (int i = 0; i < parsedCommandLine.length; i++) {
    if (parsedCommandLine[i].equals("file1Name")) {
        parsedCommandLine[i] = file1Name;
    } else if (parsedCommandLine[i].equals("file2Name")) {
        parsedCommandLine[i] = file2Name;
    } else if (parsedCommandLine[i].equals("display1")) {
        parsedCommandLine[i] = display1;
    } else if (parsedCommandLine[i].equals("display2")) {
...
StringsubstituteEnvironmentVariables(String str, String prefix, String suffix)
substitute Environment Variables 
StringBuilder buffer = new StringBuilder(str);
int prefixLength = prefix.length();
int index = 0;
while (index < buffer.length()) {
    index = buffer.indexOf(prefix, index);
    if (index < 0)
        break;
    index += prefixLength;
...
StringsubstituteHex(String aString)
Substitutes hex values in aString and convert them to operating system char equivalents in the return string. 
if (aString == null)
    return null;
StringBuffer buffer = new StringBuffer();
String rest = aString;
int i = rest.indexOf(HEX_OPEN);
while (i > -1) {
    int j = rest.indexOf(HEX_CLOSE, i + HEX_OPEN.length());
    if (j > -1) {
...
StringsubstituteInvalidChars(String str)
substitute Invalid Chars 
str = str.replace(' ', '_');
str = str.replace('.', '_');
return str;
StringsubstituteJobID(String path)
substitute Job ID 
if (path == null) {
    return null;
return path.replace("%j", "$PBS_JOBID");