Appending default value (0) of char type to string

Question

public class Test {
    static char ch;

    public static void main(String[] args) {
        String str = Character.toString(ch);
        System.out.println("abc" + str + "def");
    }
}

Console output : abc
Expected output : abc def

Since default char value is 0(space). Any concept I'm missing here?

actually char ch = 0, means NUL. I mis-understood it with a space. Thanks! https://www.cs.cmu.edu/~pattis/15-1XX/common/handouts/ascii.html — Buddy, Mar 22 '19 at 06:51

score 1 · Accepted Answer · edited Mar 22 '19 at 06:28

1

According to standard -static variables are by default initialized to zero (0 and not '0')or blank. But it's a good practice to always initialize it explicitly.

static char ch = 0; //=>abcdef or static char ch = ' '; =>abc def

or if you want value to 0 use-

static char ch = '\0'; //=>abcdef

edited Mar 22 '19 at 06:28

Jaja

662
7
15

answered Mar 22 '19 at 06:15

Onkar Musale

909
10
25

`'0'` is not the same as `(char) 0` – ernest_k Mar 22 '19 at 06:17
I'm not getting expected output. Anything on it would be appreciating. thanks! – Buddy Mar 22 '19 at 06:17
char c = '\0'; use this if you want char value as 0 – Onkar Musale Mar 22 '19 at 06:18
Even though, not getting expected output. – Buddy Mar 22 '19 at 06:21
use this--static char ch = 0; String str = String.valueOf(ch); System.out.println("abc" + str + "def"); – Onkar Musale Mar 22 '19 at 06:29

Appending default value (0) of char type to string

1 Answers1