Concatenate chars to form String in java

Question

Is there a way to concatenate char to form a String in Java   Example   String str  Char a  b  c  a    i   b    c   c    e    str   a   b   c     thus str    ice

User · Answer

Try this    str   String valueOf a  String valueOf b  String valueOf c     Output   ice

User · Answer

If the size of the string is fixed  you might find easier to use an array of chars  If you have to do this a lot  it will be a tiny bit faster too   char   chars   new char 3   chars 0     i   chars 1     c   chars 2     e   return new String chars     Also  I noticed in your original question  you use the Char class  If your chars are not nullable  it is better to use the lowercase char type

User · Answer

Use StringBuilder   String str  Char a  b  c  a    i   b    c   c    e    StringBuilder sb   new StringBuilder    sb append a   sb append b   sb append c   str   sb toString      One-liner   new StringBuilder   append a  append b  append c  toString      Doing    a b c gives   new StringBuilder   append     append a  append b  append c  toString      I asked some time ago related question

User · Answer

Use the Character toString char  method

User · Answer

You can use StringBuilder       StringBuilder sb   new StringBuilder        sb append  a        sb append  b        sb append  c        String str   sb toString     Or if you already have the characters  you can pass a character array to the String constructor   String str   new String new char    a    b    c

User · Answer

Use str      a b c   Here the first   is String concat  so the result will be a String  Note where the    lies is important   Or  maybe  better  use a StringBuilder

[java] Concatenate chars to form String in java

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