Android Utililty Methods String Replace

List of utility methods to do String Replace

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Description

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

Method

Stringreplace(String from, String to, String source)
replace 
if (source == null || source.length() == 0 || from == null
        || from.length() == 0 || to == null) {
    return source;
StringBuffer str = new StringBuffer("");
int index = -1;
int len = from.length();
while ((index = source.indexOf(from)) != -1) {
...
Stringreplace(String line, String oldString, String newString)
replace 
if (line == null) {
    return null;
int i = 0;
if ((i = line.indexOf(oldString, i)) >= 0) {
    char[] line2 = line.toCharArray();
    char[] newString2 = newString.toCharArray();
    int oLength = oldString.length();
...
Stringreplace(String originalString, String searchString, String replaceString)
replace 
StringBuilder sb = new StringBuilder(originalString);
int index = sb.indexOf(searchString);
while (index != -1) {
    sb.replace(index, index + searchString.length(), replaceString);
    index += replaceString.length();
    index = sb.indexOf(searchString, index);
return sb.toString();
...
Stringreplace(String str, Map replacementMap)
replace 
Matcher matcher = REPLACE_PATTERN.matcher(str);
StringBuilder builder = new StringBuilder();
int i = 0;
while (matcher.find()) {
    Object replacement = replacementMap.get(matcher.group(2));
    builder.append(str.substring(i, matcher.start() == 0 ? 0
            : matcher.start() + 1));
    builder.append(replacement != null ? replacement : "");
...
Stringreplace(final String text, final String fromText, final String toText)
replace 
if (text == null || fromText == null || toText == null) {
    return null;
StringBuffer buf = new StringBuffer(100);
int pos = 0;
int pos2 = 0;
while (true) {
    pos = text.indexOf(fromText, pos2);
...
StringreplaceAll(String input, String searchStr, String replaceWithStr)
replace All 
StringBuffer buffer = new StringBuffer();
int startIndex = 0;
int oldIndex = 0;
if (input.indexOf(searchStr) == -1) {
    return input;
while ((startIndex = input.indexOf(searchStr, oldIndex)) != -1) {
    buffer.append(input.substring(oldIndex, startIndex));
...
StringreplaceAllKanaWith(String text, String replacement)
replace All Kana With 
return text.replaceAll("[\u3040-\u3096]", replacement);
StringreplaceAllKanjiWith(String text, String replacement)
replace All Kanji With 
return text.replaceAll("[\u4e00-\u9faf]", replacement);
StringBuilderreplaceKeyWords(StringBuilder sb, String[] keywords, String replaceStr)
replace Key Words 
for (int i = 0; i < keywords.length; i++) {
    String s = keywords[i];
    for (int j = sb.indexOf(s); j > 0; j = sb.indexOf(s)) {
        sb.replace(j, j + s.length(), replaceStr);
return sb;
String[]replaceR(String str)
replace R 
String[] s = { "", "" };
String strReturn = "";
if (str.indexOf("\r\n") != -1) {
    s[1] = "\r\n";
    s[0] = str.replaceAll("\r\n", "");
    return s;
} else if (str.indexOf("\n") != -1) {
    s[1] = "\n";
...