Java API Tutorial - Java Scanner.hasNext()

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Syntax

Scanner.hasNext() has the following syntax.

public boolean hasNext()

Example

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

import java.util.Scanner;
import java.util.regex.Pattern;
//w w  w . java  2s .c  o  m
public class Main {

   public static void main(String[] args) {

      String s = "java2s.com 1 + 1 = 2.0";

      Scanner scanner = new Scanner(s);

      // check if the scanner has a token
      System.out.println(scanner.hasNext());

      // print the rest of the string
      System.out.println(scanner.nextLine());

      // check if the scanner has a token after printing the line
      System.out.println(scanner.hasNext());


      scanner.close();
   }
}

The code above generates the following result.

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