'Incompatible operand' fault

[fatnic388]

Hi. I'm new to Java but been programming for a few years. Mainly PHP (Quite a few similarities between the two). I'm copying an example form a book.

Code:

char symbol;
		
while (diskScanner.hasNext()) {
	symbol = diskScanner.findInLine(".").charAt(0);
	while (symbol != "@") {
		diskWriter.print(symbol);
		symbol = diskScanner.findInLine(".").charAt(0);
	}
	diskScanner.nextLine();
	diskWriter.println();
}

The 'symbol !="@"' part is throwing 'Incompatible operand types char and String'. Not sure why, as symbol has been declared as a char and "@" is a char!

[staykovmarin]

Use single quotes:

Code:

while (symbol != '@') {

[fatnic388]

Wow! That was easy! Seems like there's some basics I need to get the hang of.

[staykovmarin]

Yes:

Code:

diskScanner.findInLine(".").charAt(0)

That will return a single character (the char at index 0). Dont forget that chars are a primitive data type (like int, double, float, etc).