Java.util.Scanner.nextBigInteger() 方法

package com.codingdict;

import java.util.*;

public class ScannerDemo {
   public static void main(String[] args) {

      String s = "Hello World! 3 + 3.0 = 6  true";

      // create a new scanner with the specified String Object
      Scanner scanner = new Scanner(s);

      // find the next BigInteger token and print it
      // loop for the whole scanner
      while (scanner.hasNext()) {

         // if the next is BigInteger, print "Found" and the Integer
         if (scanner.hasNextBigInteger()) {
            System.out.println("Found :" + scanner.nextBigInteger());
         }

         // if a BigInteger is not found, print "Not Found" and the token
         System.out.println("Not Found :" + scanner.next());
      }

      // close the scanner
      scanner.close();
   }
}