Can someone explain the program, I don't understand why the output is 326

Question

What is the output of this code? 

int x = 21;

int y = 7;

System.out.print(x- - /y- -);

System.out.print(x+y) ;

output: 326

Answer 1

first print -> 21/7 = 3 (no change in values due to post decrement operator)

second print -> 20+6 = 26 (decremeted values due to previous line)

output => 326 (append both values)

Answer 2

thankyouu!!! I finally understand hehehe

Answer 3

Infinity in second print, how did it became 20 and 6? why it is not the original value?

Answer 4

x-- in first print actually decreased the value of x and so did y-- to y

Answer 5

For clarity, post decrement operator is like - use now, decrement later