How to convert a char array back to a string

Question

I have a char array   char   a     h    e    l    l    o         w    o    r    l    d      My current solution is to do   String b   new String a     But surely there is a better way of doing this

User · Answer

You can also use StringBuilder class  String b   new StringBuilder a  toString      Use of String or StringBuilder varies with your method requirements

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Just use String value of like below      private static void h              String helloWorld    helloWorld           System out println helloWorld            char    charArr   helloWorld toCharArray             System out println String valueOf charArr

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You can use String valueOf method   For example   char   a     h    e    l    l    o         w    o    r    l    d    String b   String valueOf a   System out println  Char Array back to String is      b     For more on char array to string you can refer links below  https   docs oracle com javase 7 docs api java lang String html  https   www flowerbrackets com convert-char-array-to-string-java

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package naresh java   public class TestDoubleString        public static void main String args             String str  abbcccddef               char charArray   str toCharArray            int len charArray length           for int i 0 i lt len i                   if i th one and i 1 th character are same then update the charArray             try                  if charArray i   charArray i 1                        charArray i   0                                                         catch Exception e                       System out println  Exception                                 finally printing final character string         for int k 0 k lt charArray length k                 if charArray k    0                    System out println charArray k

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Given Character Array    char   a     h    e    l    l    o         w    o    r    l    d            Converting Character Array to String using String funtion          System out println String valueOf a          OUTPUT   hello world   Converting any given Array type to String using Java 8 Stream function  String stringValue    Arrays stream new char     a   map String  valueOf  collect Collectors joining

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String str    wwwwww3333dfevvv   char   c   str toCharArray      Now to convert character array into String   there are two ways   Arrays toString c     Returns the string  w  w  w  w  w  w  3  3  3  3  d  f  e  v  v  v    And   String valueOf c    Returns the string wwwwww3333dfevvv   In Summary  pay attention to Arrays toString c   because you ll get   w  w  w  w  w  w  3  3  3  3  d  f  e  v  v  v   instead of  wwwwww3333dfevvv

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No  that solution is absolutely correct and very minimal    Note however  that this is a very unusual situation  Because String is handled specially in Java  even  foo  is actually a String  So the need for splitting a String into individual chars and join them back is not required in normal code   Compare this to C C   where  foo  you have a bundle of chars terminated by a zero byte on one side and string on the other side and many conversions between them due do legacy methods

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This will convert char array back to string   char   charArray     a    b    c    String str   String valueOf charArray

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A String in java is merely an object around an array of chars  Hence a  char     is identical to an unboxed String with the same characters  By creating a new String from your array of characters  new String char      you are essentially telling the compiler to autobox a String object around your array of characters

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String output   new String charArray    Where charArray is the character array and output is your character array converted to the string

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Try this   CharSequence   charArray     a   b   c     for  int i   0  i  lt  charArray length  i         String str   charArray toString   join     charArray i        System out print str

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Try this  Arrays toString array

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Try to use java util Arrays  This module has a variety of useful methods that could be used related to Arrays   Arrays toString your array here

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1 alternate way is to do   String b   a

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String text   String copyValueOf data     or   String text   String valueOf data    is arguably better  encapsulates the new String call

[java] How to convert a char array back to a string?

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