String class:
| Method | Description |
|---|---|
| char charAt( int index ) |
Returns the character at the specified index. |
| int compareTo( Object o ) |
Compares this String to another Object. |
| int compareTo( String anotherString ) |
Compares two strings lexicographically. |
| int compareToIgnoreCase( String str ) |
Compares two strings lexicographically, ignoring case differences. |
| String concat( String str ) |
Concatenates the specified string to the end of this string. |
| boolean contentEquals( StringBuffer sb ) |
Returns true if and only if this String represents the same sequence of characters as the specified StringBuffer. |
| static String copyValueOf( char[ ] data ) |
Returns a String that represents the character sequence in the array specified. |
| static String copyValueOf( char[ ] data, int offset, int count ) |
Returns a String that represents the character sequence in the array specified. |
| boolean endsWith( String suffix ) |
Tests if this string ends with the specified suffix. |
| boolean equals( Object anObject ) |
Compares this string to the specified object. |
| boolean equalsIgnoreCase( String anotherString ) |
Compares this String to another String, ignoring case considerations. |
| byte getBytes( ) |
Encodes this String into a sequence of bytes using the platform’s default charset, storing the result into a new byte array. |
| byte[ ] getBytes( String charsetName ) |
Encodes this String into a sequence of bytes using the named charset, storing the result into a new byte array. |
| void getChars( int srcBegin, int srcEnd, char[ ] dst, int dstBegin ) |
Copies characters from this string into the destination character array. |
| int hashCode( ) |
Returns a hash code for this string. |
| int indexOf( int ch ) |
Returns the index within this string of the first occurrence of the specified character. |
| int indexOf( int ch, int fromIndex ) |
Returns the index within this string of the first occurrence of the specified character, starting the search at the specified index. |
| int indexOf( String str ) |
Returns the index within this string of the first occurrence of the specified substring. |
| int indexOf( String str, int fromIndex ) |
Returns the index within this string of the first occurrence of the specified substring, starting at the specified index. |
| String intern( ) |
Returns a canonical representation for the string object. |
| int lastIndexOf( int ch ) |
Returns the index within this string of the last occurrence of the specified character. |
| int lastIndexOf( int ch, int fromIndex ) |
Returns the index within this string of the last occurrence of the specified character, searching backward starting at the specified index. |
| int lastIndexOf( String str ) |
Returns the index within this string of the rightmost occurrence of the specified substring. |
| int lastIndexOf( String str, int fromIndex ) |
Returns the index within this string of the last occurrence of the specified substring, searching backward starting at the specified index. |
| int length( ) |
Returns the length of this string. |
| boolean matches( String regex ) |
Tells whether or not this string matches the given regular expression. |
| boolean regionMatches( boolean ignoreCase, int toffset, String other, int ooffset, int len ) |
Tests if two string regions are equal. |
| boolean regionMatches( int toffset, String other, int ooffset, int len ) |
Tests if two string regions are equal. |
| String replace( char oldChar, char newChar ) |
Returns a new string resulting from replacing all occurrences of oldChar in this string with newChar. |
| String replaceAll( String regex, String replacement ) |
Replaces each substring of this string that matches the given regular expression with the given replacement. |
| String replaceFirst( String regex, String replacement ) |
Replaces the first substring of this string that matches the given regular expression with the given replacement. |
| String[ ] split( String regex ) |
Splits this string around matches of the given regular expression. |
| String[ ] split( String regex, int limit ) |
Splits this string around matches of the given regular expression. |
| boolean startsWith( String prefix ) |
Tests if this string starts with the specified prefix. |
| boolean startsWith( String prefix, int toffset ) |
Tests if this string starts with the specified prefix beginning a specified index. |
| CharSequence subSequence( int beginIndex, int endIndex ) |
Returns a new character sequence that is a subsequence of this sequence. |
| String substring( int beginIndex ) |
Returns a new string that is a substring of this string. |
| String substring( int beginIndex, int endIndex ) |
Returns a new string that is a substring of this string. |
| char[ ] toCharArray( ) |
Converts this string to a new character array. |
| String toLowerCase( ) |
Converts all of the characters in this String to lower case using the rules of the default locale. |
| String toLowerCase( Locale locale ) |
Converts all of the characters in this String to lower case using the rules of the given Locale. |
| String toString( ) |
This object (which is already a string!) is itself returned. |
| String toUpperCase( ) |
Converts all of the characters in this String to upper case using the rules of the default locale. |
| String toUpperCase( Locale locale ) |
Converts all of the characters in this String to upper case using the rules of the given Locale. |
| String trim( ) |
Returns a copy of the string, with leading and trailing whitespace omitted. |
| static String valueOf( primitive data type x ) |
Returns the string representation of the passed data type argument. |