Print array without brackets and commas

Question

I m porting a Hangman game to Android and have met a few problems  The original Java program used the console  so now I have to somehow beautify the output so that it fits my Android layout   How do I print an array without the brackets and commas  The array contains slashes and gets replaced one-by-one when the correct letter is guessed   I am using the usual  toString   function of the ArrayList class and my output is formatted like    a  n  d  r  o  i  d    I want it to simply print out the array as a single String   I fill the array using this bit of code   List lt String gt  publicArray   new ArrayList lt  gt      for  int i   0  i  lt  secretWordLength  i          hiddenArray add secretWord substring i  i   1        publicArray add  -        And I print it like this   TextView currentWordView    TextView  findViewById R id CurrentWord   currentWordView setText publicArray toString       Any help would be appreciated

User · Answer

the most simple solution for removing the brackets is,

1.convert the arraylist into string with .toString() method.

2.use String.substring(1,strLen-1).(where strLen is the length of string after conversion from arraylist).

3.Hurraaah..the result string is your string with removed brackets.

hope this is useful...:-)

User · Answer

You can use join method from android text TextUtils class like   TextUtils join    array

User · Answer

I used join    function like   i new Array  Hi    Hello    Cheers    Greetings    i i join        Which Prints       HiHelloCheersGreetings   See more  Javascript Join - Use Join to Make an Array into a String in Javascript

User · Answer

With Java 8 or newer  you can use String join  which provides the same functionality      Returns a new String composed of copies of the CharSequence elements joined together with a copy of the specified delimiter   String   array   new String      a    n    d    r    o    i    d     String joined   String join     array     returns  android    With an array of a different type  one should convert it to a String array or to a char sequence Iterable   int   numbers     1  2  3  4  5  6  7       both of the following return  1234567  String joinedNumbers   String join             Arrays stream numbers  mapToObj String  valueOf  toArray n - gt  new String n     String joinedNumbers2   String join             Arrays stream numbers  mapToObj String  valueOf  collect Collectors toList        The first argument to String join is the delimiter  and can be changed accordingly

User · Answer

I have used  Arrays toString array name  replace         replace         replace           as I have seen it from some of the comments above  but also i added an additional space character after the comma  the part  replace            because while I was printing out each value in a new line  there was still the space character shifting the words  It solved my problem

User · Answer

first  StringUtils join array        second  Arrays asList arr  toString   substring 1  replaceFirst          replace            EDIT  probably the best one  Arrays toString arr

User · Answer

Just initialize a String object with your array  String s new String array

User · Answer

If you use Java8 or above  you can use with stream   with native   publicArray stream            map Object  toString           collect Collectors joining          References   Use Java 8 Language Features JavaDoc StringJoiner Joining Objects into a String with Java 8 Stream API

User · Answer

Basically  don t use ArrayList toString   - build the string up for yourself  For example   StringBuilder builder   new StringBuilder    for  String value   publicArray        builder append value     String text   builder toString       Personally I wouldn t call the variable publicArray when it s not actually an array  by the way

User · Answer

Replace the brackets and commas with empty space   String formattedString   myArrayList toString        replace             remove the commas      replace             remove the right bracket      replace             remove the left bracket      trim                remove trailing spaces from partially initialized arrays

[java] Print array without brackets and commas

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