System.out.println('h'+'i');

Question

what is the output of this statement?
Is the output a number? if so how?

Answer 1

Since you used ' instead of ", it treats h and i as char. It takes their char values (ASCII values)and add them.

Remember a = 97. So:-
h = 104
i = 105

h + i = 209, thats your output.

Answer 2

The + operator on characters add up their ascii values so it prints an integer. if you were using double quotes instead e.g.. "h"+"i", the + operator understands it is a concatenation of strings and the output would be "hi".
note also that :
system.out.printl('h') prints the character 'h', whereas
system.out.println('h'+0) prints the integer 104.

Answer 3

Characters are represented as numbers in memory. You will probably get sum of ASCII values of 'h' and 'i'.