Java String Methods

Method 

Description

Return Type

charAt()

Please rewrite the statement to retrieve the character located at a specific index.

char

codePointAt()

Rewords to provide the Unicode value of the character situated at the specified index

int

codePointBefore()

Rewords to provide the Unicode value of the character situated at the specified index.

int 

codePointCount()

Retrieves the Unicode value of the character preceding the specified index.

int 

compareTo()

Determines the count of Unicode values present within a string.

int

compareToIgnoreCase()

Performs a lexicographical comparison between two strings.

int

concat()

Conducts a lexicographical comparison between two strings while disregarding differences in case.

string

contains()

Adds a string to the conclusion of another string

boolean 

contentEquals()

Attaches a string to the end of another string.

boolean

copyValueOf()

Verifies if a string holds the identical sequence of characters as the specified CharSequence or StringBuffer.

String

endsWith()

Provides a String that represents the characters contained within the character array.

boolean

equals()

Determines if a string concludes with the specified character(s).

boolean

equalsIgnoreCase()

Compares two strings without taking case into account.

boolean

format()

Returns a formatted string using the specified locale, format string, and arguments

String

getBytes()

Generates a formatted string utilizing the specified locale, format string, and arguments.

byte[]

getChars()

Transforms a string into an array of bytes.

Void

hashCode()

Duplicates characters from a string into an array of chars.

Int

indexOf()

Provides the hash code of a string.

Int

intern()

Provides the position of the first occurrence of specified characters within a string.

string`

isEmpty()

Provides the canonical representation of the string object.

boolean

join()

Determines if a string is empty or not.

String

Combines one or more strings using a specified separator.

Int

length()

Provides the position of the last occurrence of specified characters within a string.

Int

matches()

Provides the size of a specified string.

boolean

offsetByCodePoints()

Searches a string for a match with a regular expression and returns the matched results.

Int

regionMatches()

Provides the index within this String that is shifted from the given index by a specified number of code points.

boolean

replace()

Checks if two regions within strings are identical.

String

replaceAll()

Searches a string for a particular value and produces a new string where the specified values are substituted.

String

replaceFirst()

Substitutes each substring of this string that matches the provided regular expression with the specified replacement.

String

split()

Divides a string into an array of substrings.

strin[]

startsWith()

Determines if a string begins with specified characters.

boolean

subSequence()

Provides a new character sequence that is a portion of this sequence.

charSequence`

substring()

Provides a new string that is a substring of a specified string.

String

toCharArray()

Converts this string into a new character array.

char[]

toLowerCase()

Converts a string to lowercase letters.

String

Provides the content of a String object.

String

toUpperCase()

Changes a string to uppercase letters.

String

trim()

Eliminates whitespace from both ends of a string.

String

valueOf()

Provides the string representation of the specified value.

String