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Programming-Idioms

  • Rust
  • Java

Idiom #152 Turn a character into a string

Create string s containing only the character c.

String s = = new Character(c).toString();
String s = Character.toString(c);
String s = c + "";

This "lazy way" is quite common, but slow at runtime.
String s = String.valueOf(c);
String s = "%s".formatted(c);
let s = c.to_string();
S : constant String := "" & C;

Create string by concatenating character to empty string
New implementation...
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programming-idioms.org 
String s = = new Character(c).toString();
String s = Character.toString(c);
String s = c + "";
String s = String.valueOf(c);
String s = "%s".formatted(c);
let s = c.to_string();
S : constant String := "" & C;

char s[2] = {0};
s[0] = c;
(def s (str c))
string s { 'c' };
var s = new string(c, 1);
string s = c.ToString();
string s = to!string(c);
var s=c;
to_string(char)
S = [C]
character(len=:),allocatable :: s
character(len=1) :: c
s=c
s := fmt.Sprintf("%c", c)
s = [c]
let s = c
val s: String = c.toString()
(defparameter *s* (string c))
s = c
$s = (string) $c;
var
  s: string;
begin
  s := 'c';
end.
my $s = $c;
s = c
s = ?c