Java Utililty Methods Char Count

int charCount(final String s, final char c)
char Count

int r = 0;
for (int i = 0, len = s != null ? s.length() : 0; i < len; i++) {
 if (c == s.charAt(i)) {
 r++;
return r;

int charCount(final String s, final char c)
Get the number of the occurence of a char in a string.

if (s == null)
 return 0;
final int len = s.length();
int count = 0;
for (int i = 0; i < len; i++)
 if (s.charAt(i) == c)
 count++;
return count;
...

int charCount(int codePoint)
char Count

return codePoint >= MIN_SUPPLEMENTARY_CODE_POINT ? 2 : 1;

int charCount(String s, char c)
char Count

int res = 0;
for (char ch : s.toCharArray())
 if (ch == c)
 res++;
return res;

int charCount(String source, char target)
char Count

if (source == null) {
 return 0;
int count = 0;
for (int i = 0; i < source.length(); i++) {
 if (target == source.charAt(i)) {
 count++;
return count;

int charCount(String str, char c, boolean countEscaped)
Helper method to count number of given characters in a string.

if (str == null)
 return -1;
int cnt = 0;
for (int i = 0; i < str.length(); i++) {
 if (str.charAt(i) == c) {
 if (i >= 1) {
 if (str.charAt(i - 1) == '\\') {
 if (countEscaped) {
...

int charCount(String str, char chr)
char Count

int count = 0;
if (str != null) {
 int length = str.length();
 for (int i = 0; i < length; i++) {
 if (str.charAt(i) == chr) {
 count++;
 return count;
return count;

int charCount(String str, char sub)
char Count

int charCount = 0;
int fromIndex = 0;
while ((fromIndex = str.indexOf(sub, fromIndex)) != -1) {
 fromIndex++;
 charCount++;
return charCount;

int charCount(String subject, String needle)
char Count

return subject.split(needle).length - 1;

int charCountRight(String str, String sub)
char Count Right

if (str == null) {
 return 0;
int charCount = 0;
String subStr = str;
int currentLength = subStr.length() - sub.length();
while (currentLength >= 0 && subStr.substring(currentLength).equals(sub)) {
 charCount++;
...