Comparing chars within Java StringBuffer

Question

I want to check if the char at a certain index in a StringBuffer is equal to a char. I am getting an error, how do I compare them? Here's my code:

//I have an established StringBuffer called stringbuffer

char[] mychar = null;
for(int i = 0; i < stringbuffer.length(); ++i){
        if(stringbuffer.charAt(i) != " "){
              mychar[i] = stringbuffer.charAt(i);
        }
}

The error I am getting is incompatible operand types char and String. Not sure why, because I am comparing a char of a StringBuffer, not a String or StringBuffer.

You're comparing a char with a String literal.

Alexis C.
– Alexis C.

2015-02-19 20:24:07 +00:00
Commented Feb 19, 2015 at 20:24 — Alexis C.
– Alexis C., Commented Feb 19, 2015 at 20:24

Pshemo · Accepted Answer · 2015-02-19 20:36:58Z

1

Values of char type are surrounded with ', Strings are surrounded with " and you can't compare char with String with == in Java.

Try with

if(stringbuffer.charAt(i) != ' '){

or maybe cleaner (but this will check fore more than just simple ' ')

if (! Character.isWhitespace(stringbuffer.charAt(i)) ) {

edited Feb 19, 2015 at 20:36

answered Feb 19, 2015 at 20:27

Pshemo

125k25 gold badges194 silver badges280 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Comparing chars within Java StringBuffer

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related