public boolean hasNextLine()

// Java program to illustrate the
// hasNextLine() method of Scanner class in Java
// without parameter
  
import java.util.*;
  
public class GFG1 {
    public static void main(String[] argv)
        throws Exception
    {
  
        String s = "gfg 2 geeks!";
  
        // new scanner with the
        // specified String Object
        Scanner scanner = new Scanner(s);
  
        // use US locale to interpret Lines in a string
        scanner.useLocale(Locale.US);
  
        // iterate till end
        while (scanner.hasNextLine()) {
  
            // print what is scanned
            System.out.println(scanner.nextLine());
        }
  
        // close the scanner
        scanner.close();
    }
}

gfg 2 geeks!

// Java program to illustrate the
// hasNextLine() method of Scanner class in Java
// without parameter
  
import java.util.*;
  
public class GFG1 {
    public static void main(String[] argv)
        throws Exception
    {
        try {
  
            String s = "gfg 2 geeks!";
  
            // new scanner with the
            // specified String Object
            Scanner scanner = new Scanner(s);
  
            // use US locale to interpret Lines in a string
            scanner.useLocale(Locale.US);
  
            scanner.close();
  
            // iterate till end
            while (scanner.hasNextLine()) {
  
                // print what is scanned
                System.out.println(scanner.nextLine());
            }
  
            // close the scanner
            scanner.close();
        }
        catch (IllegalStateException e) {
            System.out.println("Exception is: " + e);
        }
    }
}

Exception is: java.lang.IllegalStateException: Scanner closed