why we use '+' between two string? if we don't write then also it will appear the same output.. so what is the use of that plus

Answer 1

You can refer this Java code from line 200..
You'll see how the use of "+" increased the readability.

https://code.sololearn.com/c1h675adCP47/?ref=app

Answer 2

Like tabs, enter, spaces...

Sometimes programmer wanna separe to understand better.

Answer 3

+ is used to concatenate two or more strings.

Answer 4

It's useful when you have a number that changes and you want to + a string to it.

int a = 10;

System.out.println("There are "+a+" apples");

--a;

System.out.println("There are "+a+" apples");