• Field Summary

    Fields

    A Comparator that orders String objects as by compareToIgnoreCase.

  • Constructor Summary

    Constructors

    String()

    Initializes a newly created String object so that it represents an empty character sequence.

    String(byte[] bytes)

    Constructs a new String by decoding the specified array of bytes using the default charset.

    String(byte[] ascii, int hibyte)

    String(byte[] bytes, int offset, int length)

    Constructs a new String by decoding the specified subarray of bytes using the default charset.

    String(byte[] ascii, int hibyte, int offset, int count)

    String(byte[] bytes, int offset, int length, String charsetName)

    Constructs a new String by decoding the specified subarray of bytes using the specified charset.

    String(byte[] bytes, int offset, int length, Charset charset)

    Constructs a new String by decoding the specified subarray of bytes using the specified charset.

    String(byte[] bytes, String charsetName)

    Constructs a new String by decoding the specified array of bytes using the specified charset.

    String(byte[] bytes, Charset charset)

    Constructs a new String by decoding the specified array of bytes using the specified charset.

    String(char[] value)

    Allocates a new String so that it represents the sequence of characters currently contained in the character array argument.

    String(char[] value, int offset, int count)

    Allocates a new String that contains characters from a subarray of the character array argument.

    String(int[] codePoints, int offset, int count)

    Allocates a new String that contains characters from a subarray of the Unicode code point array argument.

    Initializes a newly created String object so that it represents the same sequence of characters as the argument; in other words, the newly created string is a copy of the argument string.

    Allocates a new string that contains the sequence of characters currently contained in the string buffer argument.

    Allocates a new string that contains the sequence of characters currently contained in the string builder argument.

  • Method Summary

    char

    charAt(int index)

    Returns the char value at the specified index.

    chars()

    Returns a stream of int zero-extending the char values from this sequence.

    int

    codePointAt(int index)

    Returns the character (Unicode code point) at the specified index.

    int

    codePointBefore(int index)

    Returns the character (Unicode code point) before the specified index.

    int

    codePointCount(int beginIndex, int endIndex)

    Returns the number of Unicode code points in the specified text range of this String.

    Returns a stream of code point values from this sequence.

    int

    Compares two strings lexicographically.

    int

    Compares two strings lexicographically, ignoring case differences.

    Concatenates the specified string to the end of this string.

    boolean

    Returns true if and only if this string contains the specified sequence of char values.

    boolean

    Compares this string to the specified CharSequence.

    boolean

    Compares this string to the specified StringBuffer.

    copyValueOf(char[] data)

    Equivalent to valueOf(char[]).

    copyValueOf(char[] data, int offset, int count)

    Equivalent to valueOf(char[], int, int).

    Returns an Optional containing the nominal descriptor for this instance, which is the instance itself.

    boolean

    Tests if this string ends with the specified suffix.

    boolean

    Compares this string to the specified object.

    boolean

    Compares this String to another String, ignoring case considerations.

    Returns a formatted string using the specified format string and arguments.

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

    Formats using this string as the format string, and the supplied arguments.

    byte[]

    getBytes()

    Encodes this String into a sequence of bytes using the default charset, storing the result into a new byte array.

    void

    getBytes(int srcBegin, int srcEnd, byte[] dst, int dstBegin)

    byte[]

    Encodes this String into a sequence of bytes using the named charset, storing the result into a new byte array.

    byte[]

    Encodes this String into a sequence of bytes using the given 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.

    indent(int n)

    Adjusts the indentation of each line of this string based on the value of n, and normalizes line termination characters.

    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(int ch, int beginIndex, int endIndex)

    Returns the index within this string of the first occurrence of the specified character, starting the search at beginIndex and stopping before endIndex.

    int

    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.

    int

    indexOf(String str, int beginIndex, int endIndex)

    Returns the index of the first occurrence of the specified substring within the specified index range of this string.

    intern()

    Returns a canonical representation for the string object.

    boolean

    isBlank()

    Returns true if the string is empty or contains only white space codepoints, otherwise false.

    boolean

    isEmpty()

    Returns true if, and only if, length() is 0.

    Returns a new String composed of copies of the CharSequence elements joined together with a copy of the specified delimiter.

    Returns a new String composed of copies of the CharSequence elements joined together with a copy of the specified delimiter.

    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

    Returns the index within this string of the last 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.

    lines()

    Returns a stream of lines extracted from this string, separated by line terminators.

    boolean

    int

    offsetByCodePoints(int index, int codePointOffset)

    Returns the index within this String that is offset from the given index by codePointOffset code points.

    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.

    repeat(int count)

    Returns a string whose value is the concatenation of this string repeated count times.

    replace(char oldChar, char newChar)

    Returns a string resulting from replacing all occurrences of oldChar in this string with newChar.

    Replaces each substring of this string that matches the literal target sequence with the specified literal replacement sequence.

    Replaces each substring of this string that matches the given regular expression with the given replacement.

    Replaces the first substring of this string that matches the given regular expression with the given replacement.

    Resolves this instance as a ConstantDesc, the result of which is the instance itself.

    Splits this string around matches of the given regular expression and returns both the strings and the matching delimiters.

    boolean

    Tests if this string starts with the specified prefix.

    boolean

    startsWith(String prefix, int toffset)

    Tests if the substring of this string beginning at the specified index starts with the specified prefix.

    strip()

    Returns a string whose value is this string, with all leading and trailing white space removed.

    Returns a string whose value is this string, with incidental white space removed from the beginning and end of every line.

    Returns a string whose value is this string, with all leading white space removed.

    Returns a string whose value is this string, with all trailing white space removed.

    subSequence(int beginIndex, int endIndex)

    Returns a character sequence that is a subsequence of this sequence.

    substring(int beginIndex)

    Returns a string that is a substring of this string.

    substring(int beginIndex, int endIndex)

    Returns a string that is a substring of this string.

    char[]

    Converts this string to a new character array.

    Converts all of the characters in this String to lower case using the rules of the default locale.

    Converts all of the characters in this String to lower case using the rules of the given Locale.

    toString()

    This object (which is already a string!)

    Converts all of the characters in this String to upper case using the rules of the default locale.

    Converts all of the characters in this String to upper case using the rules of the given Locale.

    <R> R

    This method allows the application of a function to this string.

    Returns a string whose value is this string, with escape sequences translated as if in a string literal.

    trim()

    Returns a string whose value is this string, with all leading and trailing space removed, where space is defined as any character whose codepoint is less than or equal to 'U+0020' (the space character).

    valueOf(boolean b)

    Returns the string representation of the boolean argument.

    valueOf(char c)

    Returns the string representation of the char argument.

    valueOf(char[] data)

    Returns the string representation of the char array argument.

    valueOf(char[] data, int offset, int count)

    Returns the string representation of a specific subarray of the char array argument.

    valueOf(double d)

    Returns the string representation of the double argument.

    valueOf(float f)

    Returns the string representation of the float argument.

    valueOf(int i)

    Returns the string representation of the int argument.

    valueOf(long l)

    Returns the string representation of the long argument.

    Returns the string representation of the Object argument.

  • Field Details

    • CASE_INSENSITIVE_ORDER

  • Constructor Details

    • String

    • String

    • String

    • String

    • String

    • String

    • String

    • String

    • String

    • String

    • String

    • String

    • String

    • String

    • String

  • Method Details

    • length

    • isEmpty

    • charAt

    • codePointAt

    • codePointBefore

    • codePointCount

    • offsetByCodePoints

    • getChars

    • getBytes

    • getBytes

    • getBytes

    • getBytes

    • equals

    • contentEquals

    • contentEquals

    • equalsIgnoreCase

    • compareTo

    • compareToIgnoreCase

    • regionMatches

    • regionMatches

    • startsWith

    • startsWith

    • endsWith

    • hashCode

    • indexOf

    • indexOf

    • indexOf

    • lastIndexOf

    • lastIndexOf

    • indexOf

    • indexOf

    • indexOf

    • lastIndexOf

    • lastIndexOf

    • substring

    • substring

    • subSequence

    • concat

    • replace

    • matches

    • contains

    • replaceFirst

    • replaceAll

    • replace

    • split

    • splitWithDelimiters

    • split

    • join

    • join

    • toLowerCase

    • toLowerCase

    • toUpperCase

    • toUpperCase

    • trim

    • strip

    • stripLeading

    • stripTrailing

    • isBlank

    • lines

    • indent

    • stripIndent

    • translateEscapes

    • transform

    • toString

    • chars

    • codePoints

    • toCharArray

    • format

    • format

    • formatted

    • valueOf

    • valueOf

    • valueOf

    • copyValueOf

    • copyValueOf

    • valueOf

    • valueOf

    • valueOf

    • valueOf

    • valueOf

    • valueOf

    • intern

    • repeat

    • describeConstable

    • resolveConstantDesc