ADDITIONAL SYSTEM INFORMATION :
Windows 10/JDK 16

A DESCRIPTION OF THE PROBLEM :
When I open a Scanner object after I have close another Scanner object declared in another function, method nextInt throws NoSuchElementException

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the functions
    static void k5_14() {
        int i;
        int sum=0;
        Scanner in=new Scanner(System.in);
        do {
            System.out.print("Enter int (0 terminates input):");
            i=in.nextInt();
            sum+=i;
        } while (i!=0);
        in.close();
        System.out.println("Sum = "+sum);
    }
    
    static void k5_22() {
      int sum=0;
      Scanner input=new Scanner(System.in);
      for (int i=1;i!=0;) {
          System.out.print("Enter int (0 terminates input):");
          i=input.nextInt();
          sum+=i;
      }
      input.close();
     System.out.println("Sum = "+sum);
    }
like this

k5_22();
System.out.println("-----------------------------------");
k5_14();

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The sum of a series of integers given by the user
ACTUAL -
NoSuchElementException

---------- BEGIN SOURCE ----------
import java.util.Scanner;

public class Tmp {
    static void k5_14() {
        int i;
        int sum=0;
        Scanner in=new Scanner(System.in);
        do {
            System.out.print("Enter int (0 terminates input):");
            i=in.nextInt();
            sum+=i;
        } while (i!=0);
        in.close();
        System.out.println("Sum = "+sum);
    }
    
    static void k5_22() {
      int sum=0;
      Scanner input=new Scanner(System.in);
      for (int i=1;i!=0;) {
          System.out.print("Enter int (0 terminates input):");
          i=input.nextInt();
          sum+=i;
      }
      input.close();
      System.out.println("Sum = "+sum);
    }
    
    public static void main(String[] args) {
        k5_14();
        k5_22();
    }
    
}

---------- END SOURCE ----------

FREQUENCY : always