Java Utililty Methods String Last Index Of

List of utility methods to do String Last Index Of

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Description

The list of methods to do String Last Index Of are organized into topic(s).

Method

intlastIndexOf(char ch, String str)
last Index Of 
if (str.charAt(str.length() - 1) == ch) {
    return str.length() - 1;
if (str.length() <= 1) {
    return -1;
return lastIndexOf(ch, str.substring(0, str.length() - 1));
intlastIndexof(char chr, int pos, CharSequence str)
Charsequence util - lastIndexOf 
int rollPos;
for (rollPos = pos - 1; rollPos > -1; rollPos--) {
    if (str.charAt(rollPos) == chr)
        break;
return rollPos;
intlastIndexOf(CharSequence chars, String searched)
last Index Of 
return lastIndexOf(chars, searched, chars.length(), false);
intlastIndexOf(CharSequence charSeq, char ch)
last Index Of 
if (charSeq == null) {
    return -1;
return lastIndexOf(charSeq, ch, charSeq.length() - 1);
intlastIndexOf(CharSequence cs, int searchChar, int start)

Finds the last index in the CharSequence that matches the specified character.

if (cs instanceof String) {
    return ((String) cs).lastIndexOf(searchChar, start);
} else {
    int sz = cs.length();
    if (start < 0) {
        return -1;
    if (start >= sz) {
...
intlastIndexOf(CharSequence haystack, char needle)
Replacement for StringBuilder.lastIndexOf() which does a lot of object creation and copying to achieve this. 
int len = haystack.length();
if (haystack == null || len == 0)
    return -1;
for (int i = (len - 1); i > 0; i--) {
    if (haystack.charAt(i) == needle)
        return i;
return -1;
...
intlastIndexOf(CharSequence s, char c, int start, int end)
Returns the index within this string of the last occurrence of the specified char, searching in specified range 
start = Math.max(start, 0);
for (int i = Math.min(end, s.length()) - 1; i >= start; i--) {
    if (s.charAt(i) == c) {
        return i;
return -1;
intlastIndexOf(CharSequence s, CharSequence seq)
Behaves like String.lastIndexOf but for CharSequence. 
return indexOf(s, seq, s.length() - 1, false);
intlastIndexOf(CharSequence theChars, CharSequence theSearch)
Returns the last index of given search chars in given chars. 
int cpos = theChars.length() - theSearch.length() + 1;
char fchar = theSearch.charAt(0);
while (--cpos >= 0) {
    if (theChars.charAt(cpos) == fchar) {
        int i = 0;
        for (i = 0; i < theSearch.length(); i++)
            if (theChars.charAt(cpos + i) != theSearch.charAt(i))
                break;
...
intlastIndexOf(final CharSequence cs, final CharSequence searchChar, final int start)
Used by the lastIndexOf(CharSequence methods) as a green implementation of lastIndexOf 
return cs.toString().lastIndexOf(searchChar.toString(), start);