Click here for example

$```$

import java.util.Scanner;

public class SumCalculator $\{$

public static void main$($String$[]$ args$)\{$

Scanner scnr $=$ new Scanner$($System$.$in$)$;

int userNumber;

int result;

result $=0$;

userNumber $=$ scnr$.$nextInt$()$;

while $($userNumber $!=1)$;

result $=$ result $+$ userNumber;

System.out.println$($result$)$;

$```$