can someone explain how this code ouput's meme in java?

Question

String cheese = "parmesan";
String str = cheese.substring(3,5);
str=str.concat(str);
System.out.print(str);
//output=meme

Answer 1

"parmesan".substring(3,5); // start at 3 stop at 5 -> "me"
012 34 567
par me san

str.concat(str); // str+str
"me"+"me" = "meme"

Answer 2

pencil and paper 😁
did you find the substring?

Answer 3

Avinesh thanks for explaining

Answer 4

I realized that it was already explained, so I thought of removing my comment. Never mind you have received good answers.

Answer 5

char 3 is m
char 5 is s
So cheese.substring(3,5) is me
str.concat(str) becomes me+me = meme

Answer 6

3 to 5 characters in cheese is "me" and "me" + "me" = meme