Add spaces between the characters of a string in Java

Question

I just want to add a space between each character of a string  Can anyone help me figuring out how to do this   E g  given  JAYARAM   I need  J A Y A R A M  as the result

User · Answer

Unless you want to loop through the string and do it "manually" you could solve it like this:

yourString.replace("", " ").trim()

This replaces all "empty substrings" with a space, and then trims off the leading / trailing spaces.

ideone.com demonstration

An alternative solution using regular expressions:

yourString.replaceAll(".(?=.)", "$0 ")

Basically it says "Replace all characters (except the last one) with with the character itself followed by a space".

ideone.com demonstration

Documentation of...

String.replaceAll (including the $0 syntax)
The positive look ahead (i.e., the (?=.) syntax)

User · Answer

Create a StringBuilder with the string and use one of its insert overloaded method  StringBuilder sb   new StringBuilder  quot JAYARAM quot    for  int i 1  i lt sb length    i  2      sb insert i        System out println sb toString      The above prints  J A Y A R A M

User · Answer

Create a char array from your string Loop through the array  adding a space      after each item in the array except the last one  maybe  BOOM   done

User · Answer

I believe what he was looking for was mime code carrier return type code such as  0D 0A  for a Return or line break  and  u00A0  for spacing  or alternatively   032

User · Answer

A simple way can be to split the string on each character and join the parts using space as the delimiter  Demo  public class Main       public static void main String   args            String s    quot JAYARAM quot           s   String join  quot   quot   s split  quot  quot             System out println s            Output  J A Y A R A M

User · Answer

Blow up your String into array of chars  loop over the char array and create a new string by succeeding a char by a space

User · Answer

If you use a stringbuilder  it would be efficient to initalize the length when you create the object  Length is going to be 2 lengthofString-1   Or creating a char array and converting it back to the string would yield the same result   Aand when you write some code please be sure that you write a few test cases as well  it will make your solution complete

User · Answer

public static void main String   args        String name    Harendra       System out println String valueOf name  replaceAll             0           System out println String valueOf name  replaceAll        0           This gives output as following use any of the above   H  a  r  e  n  d  r  a  H  a  r  e  n  d  r  a

User · Answer

This would work for inserting any character any particular position in your String   public static String insertCharacterForEveryNDistance int distance  String original  char c       StringBuilder sb   new StringBuilder        char   charArrayOfOriginal   original toCharArray        for int ch   0   ch  lt  charArrayOfOriginal length   ch             if ch   distance    0              sb append c  append charArrayOfOriginal ch            else             sb append charArrayOfOriginal ch              return sb toString        Then call it like this   String result   InsertSpaces insertCharacterForEveryNDistance 1   5434567845678965                 System out println result

User · Answer

Iterate over the characters of the String and while storing in a new array string you can append one space before appending each character    Something like this     StringBuilder result   new StringBuilder     for int i   0   i  lt  str length    i         result   result append str charAt i       if i    str length  -1        break     result   result append          return  result toString

User · Answer

I am creating a java method for this purpose with dynamic character   public String insertSpace String myString int indexno char myChar       myString myString substring 0  indexno   myChar myString substring indexno       System out println myString       return myString

User · Answer

StringBuilder result   new StringBuilder    for  int i   0  i  lt  input length    i         if  i  gt  0          result append                 result append input charAt i       System out println result toString

User · Answer

This is the same problem as joining together an array with commas  This version correctly produces spaces only between characters  and avoids an unnecessary branch within the loop   String input    Hello   StringBuilder result   new StringBuilder    if  input length    gt  0        result append input charAt 0        for  int i   1  i  lt  input length    i              result append               result append input charAt i

[java] Add spaces between the characters of a string in Java?

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