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Basic Program I need help

/ Published in: Java
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I need some help, i can't understand Why i can´t use it, it said me:`scanner` is never closed.
Thanks

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  1. package demo1;
  2. import java.util.Scanner;
  3. public class Screen2 
  4. {
  5. 	public static void main(String[] args)
  6. 	{
  7. 		Scanner scanner = new Scanner(System.in);
  8. 		System.out.print("Escriba su nombre: ");
  9. 		String nom = scanner.next();
  10. 		System.out.print("Escriba su edad: ");
  11. 		int edad = scanner.nextInt();
  12. 		System.out.print("Escriba su altura en m: ");
  13. 		double altura = scanner.nextDouble();
  14. 		System.out.println("Su nombre es: " + nom);
  15. 		System.out.println("Su edad es: " + edad);
  16. 		System.out.println("Su altura es de: " + altura + "m");
  17. 	}
  18.  
  19. }

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