What is wrong in the program?

Question

import java.util.Scanner ;

Class en ()
{
int number,encrypted_number,decrypted_number;
}

Static int do()
{
encrypted_number =(number &00011011);
System.out.println("Encrypted number is:" + encrypted_number);

decrypted_number =(encrypted_number &01011111);
System.out.println("Decrypted number is:" + decrypted_number);
}

Public static void main(String[] args)
{
Scanner number=new Scanner (System.in);
System.out.println(number.nextLine());
do();
}

Answer 1

return type is missing.......in Static int do() method....

Answer 2

int is the return type specified...