JAVA exercise 0601

//package exercise;
import java.util.Scanner;
// @author Min

public class Exercise {
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
     final int SENTINEL = -1;
     int number;
    
     Scanner scan = new Scanner(System.in);
//Scanner() << in () there must be method to use through or exact variable to use
     //declaring Scanner object, the name is scan, taking System.in as parameter
     System.out.println("Enter an integer, -1 to end");
    
     number = scan.nextInt();
     //it calls memberfuntion of scan, it takse nextint
     while(number != SENTINEL){
         System.out.println(number);
        
         System.out.println("Enter an integer, -1 to end");
         number = scan.nextInt();
     }
     System.out.println("Sentinel vaule detected. goodbye!");
    }
   
}

//Hello JAVA!!! sorry to hate you but let's be friend from now!!