"0" != "0" Java (на русском, українській тоже пишите/також пишіть)

Question

I wrote my code in Java, and when testing it, I realized that "0" != "0", here is this part of the program:
m = input.next()
if (m == 0){
...
This code in 'if' does not work. I checked it out of the program and it really is, why?

Answer 1

When using "string1==string2", Java checks if both strings have the same address in memory. Instead you should use "string1.equals(string2)" to check if two strings have the same content

This is because String isn't a data type but it's a class containing an array of chars and a punch of methods.

Answer 2

Thank you!

Answer 3

welcome :D