Java API Tutorial - Java Scanner.hasNextLong()

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Syntax

Scanner.hasNextLong() has the following syntax.

public boolean hasNextLong()

Example

In the following code shows how to use Scanner.hasNextLong() method.

import java.util.Locale;
import java.util.Scanner;
//w ww  . j  a  v  a2  s  .  c  o  m
public class Main {

   public static void main(String[] args) {

      String s = "java2s.com ";
      Long l = 1234567890987654L;
      s = s + l;

      Scanner scanner = new Scanner(s);
      
      // use US locale in order to be able to identify long in a string
      scanner.useLocale(Locale.US);

      while (scanner.hasNext()) {
         // check if the scanner's next token is along
         System.out.println(scanner.hasNextLong());


         System.out.println(scanner.next());
      }
      scanner.close();
   }
}

The code above generates the following result.

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