Can anyone tell me what is the meaning of '/'? And when to use ' ' and " ".

Answer 1

Everything inside the ' ' is considered a char in java.
So you can write .

char a = '/';
char b = '#';

The difference between char and String is that char is only and always one character (letter or symbol). But String can be zero or more characters.

Also char is a primitive type. String is a class.

You can think of char like a letter and String like a word (a collection of letters or an array of chars if you like more).

Answer 2

Thx Nedim! Is it # and / consider as char also? I see the book write like : showLine('#'); and showLine('/', 20);

Answer 3

It simply means u assigning the forward slash(/)and (#) to
a variable of type char

Answer 4

single quotes are for chars, double quotes are for Strings, example:

char c = 'a';
String s = "hello";

Answer 5

Q = char
Question = string
the simple ex for meaning of char and string