adding chars

[Rookie]

How can I add two char to make a string?

Thank you

 

[Millian Brave]

Check out String.valueOf(char) method
To produce a String you could also do like this:

char ch1 = 'a';
char ch2 = 'b';

String str = ch1 + ch2 + "";

 

[Michael Borgwardt]

Check out String.valueOf(char) method
To produce a String you could also do like this:

char ch1 = 'a';
char ch2 = 'b';

String str = ch1 + ch2 + "";

That's exactly how you DON'T do it, because it will add the chars' numeric values
and then display that as a String, i.e. it will prodcute "195".

 

[VisionSet]

How can I add two char to make a string?

either:

new String( new char[] {'h', 'e', 'l', 'l', 'o'} );

or

StringBuffer buffer = new StringBuffer();

buffer.append('a');
buffer.append('b');

System.out.println(buffer.toString());

 

[Millian Brave]

Sorry, I switched the order of the "". If you do a:

String str = "" + ch1 + ch2... you'll get the result you wanted, "ab" that
is. But I of course agree, this is a dirty way of doing it (implicit cast).

 

[Joona I Palaste]

Sorry, I switched the order of the "". If you do a:

String str = "" + ch1 + ch2... you'll get the result you wanted, "ab" that
is. But I of course agree, this is a dirty way of doing it (implicit cast).

Typically, the proper way of making a char into a String would be the
String.valueOf() method instead of "" + char, but I don't see how it
could be used to make *two* chars into *one* String.

 

[Millian Brave]

Yep, that's what I said (String.valueOf()). About the ""+ch1+ch2.. try it
out yourself.

 

[Michael Borgwardt]

Typically, the proper way of making a char into a String would be the
String.valueOf() method instead of "" + char, but I don't see how it
could be used to make *two* chars into *one* String.

Well, obviously you'd have to invoke it for each char separately and concatente
the resulting Strings. But then, using a StringBuffer directly would be faster
and cleaner, since I believe that's what the "+"-concatenation is translated to.