| Method |
Description |
Return Type |
| charAt() |
Returns the character at the specified index (position) |
char |
| codePointAt() |
Returns the Unicode of the character at the specified index |
int |
| codePointBefore() |
Returns the Unicode of the character before the specified index |
int |
| codePointCount() |
Returns the number of Unicode values found in a string. |
int |
| compareTo() |
Compares two strings lexicographically |
int |
| compareToIgnoreCase() |
Compares two strings lexicographically, ignoring case differences |
int |
| concat() |
Appends a string to the end of another string |
String |
| contains() |
Checks whether a string contains a sequence of characters |
boolean |
| contentEquals() |
Checks whether a string contains the exact same sequence of characters
of the specified CharSequence or StringBuffer |
boolean |
| copyValueOf() |
Returns a String that represents the characters of the character array |
String |
| endsWith() |
Checks whether a string ends with the specified character(s) |
boolean |
| equals() |
Compares two strings. Returns true if the strings are equal, and false
if not |
boolean |
| equalsIgnoreCase() |
Compares two strings, ignoring case considerations |
boolean |
| format() |
Returns a formatted string using the specified locale, format string, and arguments |
String |
| getBytes() |
Encodes this String into a sequence of bytes using the named charset, storing the result into a new byte array |
byte[] |
| getChars() |
Copies characters from a string to an array of chars |
void |
| hashCode() |
Returns the hash code of a string |
int |
| indexOf() |
Returns the position of the first found occurrence of specified characters in a string |
int |
| intern() |
Returns the canonical representation for the string object |
String |
| isEmpty() |
Checks whether a string is empty or not |
boolean |
| lastIndexOf() |
Returns the position of the last found occurrence of specified characters in a string |
int |
| length() |
Returns the length of a specified string |
int |
| matches() |
Searches a string for a match against a regular expression, and returns the matches |
boolean |
| offsetByCodePoints() |
Returns the index within this String that is offset from the given index by codePointOffset code points |
int |
| regionMatches() |
Tests if two string regions are equal |
boolean |
| replace() |
Searches a string for a specified value, and returns a new string where the specified values are replaced |
String |
| replaceFirst() |
Replaces the first occurrence of a substring that matches the given regular expression with the given replacement |
String |
| replaceAll() |
Replaces each substring of this string that matches the given regular expression with the given replacement |
String |
| split() |
Splits a string into an array of substrings |
String[] |
| startsWith() |
Checks whether a string starts with specified characters |
boolean |
| subSequence() |
Returns a new character sequence that is a subsequence of this sequence |
CharSequence |
| substring() |
Returns a new string which is the substring of a specified string |
String |
| toCharArray() |
Converts this string to a new character array |
char[] |
| toLowerCase() |
Converts a string to lower case letters |
String |
| toString() |
Returns the value of a String object |
String |
| toUpperCase() |
Converts a string to upper case letters |
String |
| trim() |
Removes whitespace from both ends of a string |
String |
| valueOf() |
Returns the string representation of the specified value |
String |