import java.io.ObjectInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.FileNotFoundException;

public class BinaryInputDemo
{
  public static void main(String[] args)
  {
     try
     {
         ObjectInputStream inputStream = 
           new ObjectInputStream(new FileInputStream("numbers.dat"));

         System.out.println("Reading the file numbers.dat.");
         int n1 = inputStream.readInt( );
         int n2 = inputStream.readInt( );

         System.out.println("Numbers read from file:");
         System.out.println(n1);
         System.out.println(n2);
         inputStream.close( );
     }
     catch(FileNotFoundException e)
     {
         System.out.println("Cannot find file numbers.dat.");
     }
     catch(IOException e)
     {
         System.out.println("Problems with input from numbers.dat.");
     }
     System.out.println("End of program.");
  }
}