Java扫描仪在线检测3个单词

Question

I am trying to write a little program that will use scanner to check if there is a next line (in awhile loop) and then maybe another one to check that the words on the line are tab appart and there are 3 strings (the use constructor to create a object) so the three strings would be Product Name Manufacturer Brcode

EG: Tyre17x60 Goodyear 458765464

and so and so

I am bit stuck with this so any help would be grateful

Answer 1

You can try this:

  public static void main (String[] args) throws java.lang.Exception
  {
    String str = "Tyre17x60 Goodyear 458765464"; 
    InputStream is = new ByteArrayInputStream(str.getBytes());
    Scanner sc = new Scanner(is);
    sc.useDelimiter("\n");

    while (sc.hasNext())
    {         
      String[] tmp = sc.next().split("\t");
      if (tmp.length == 3)
         System.out.println("Text contains 3 parts separated with tabs");              
      else
        System.out.println("Text is not well formated");

      // save data 
      //productName = tmp[0];
      //manufacturer = tmp[1];
      //brcode = tmp[2];

    }
  }

Answer 2

Assuming you are reading from a file, you can use the following code:

Scanner s = new Scanner(new File("file.txt"));
while(s.hasNext())
{
    String productName = s.next();
    String Manufacturer = s.next();
    String Brcode = s.next();
}

Answer 3

Scanner scan = new Scanner("file.txt");
        while(scan.hasNext()){
            scan.nextLine();
            System.out.println("Product : " + scan.next());
            System.out.println("Name : " + scan.next());
            System.out.println("Code : " + scan.nextLong());

        }

Try something like this....