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

      String s = "Hello World! 3 + 3.0 = 6.0 true ";

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

      // print a line of the scanner
      System.out.println("" + scanner.nextLine());

      // change the delimiter of this scanner
      scanner.useDelimiter("Wor");

      // display the new delimiter
      System.out.println("" + scanner.delimiter());

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

        

public class ScannerUseDelimiterDemo {

	public static void main(String[] args) {

		// Initialize Scanner object
		Scanner scan = new Scanner("Anna Mills/Female/18");
		// initialize the string delimiter
		scan.useDelimiter("/");
		// Printing the delimiter used
		System.out.println("The delimiter use is "+scan.delimiter());
		// Printing the tokenized Strings
		while(scan.hasNext()){
			System.out.println(scan.next());
		}
		// closing the scanner stream
		scan.close();

	}

}

        

public class GFG1 { 
    public static void main(String[] argv) 
        throws Exception 
    { 
  
        String s = "Geeksforgeeks has Scanner Class Methods"; 
  
        // create a new scanner 
        // with the specified String Object 
        Scanner scanner = new Scanner(s); 
  
        // print a line of the scanner 
        System.out.println("Scanner String: \n"
                           + scanner.nextLine()); 
  
        // display the old delimiter 
        System.out.println("Old delimiter: "
                           + scanner.delimiter()); 
  
        // change the delimiter of this scanner 
        scanner.useDelimiter(Pattern.compile(".ll.")); 
  
        // display the new delimiter 
        System.out.println("New delimiter: "
                           + scanner.delimiter()); 
  
        // close the scanner 
        scanner.close(); 
    } 
} 

        

public class ScannerUseDelimiterExample1 {    
     public static void main(String args[]){   
           String str = "JavaTpoint! 13 + 13.0 = 26.0 false ";  
         //Create scanner with the specified String Object  
         Scanner scanner = new Scanner(str);  
         //Print String  
         System.out.println("String: " + scanner.nextLine());  
         //Change the delimiter of this scanner  
         scanner.useDelimiter("vaT");  
         //Display the new delimiter  
         System.out.println("New delimiter: " +scanner.delimiter());  
         scanner.close();  
         }    
}  

        

public class MainClass {
  public static void main(String args[]) throws IOException {

    FileWriter fout = new FileWriter("test.txt");
    fout.write("2, 3.4,    5,6, 7.4, 9.1, 10.5, done");
    fout.close();

    FileReader fin = new FileReader("Test.txt");
    Scanner src = new Scanner(fin);
    // Set delimiters to space and comma.
    // ", *" tells Scanner to match a comma and zero or more spaces as
    // delimiters.

    src.useDelimiter(", *");

    // Read and sum numbers.
    while (src.hasNext()) {
      if (src.hasNextDouble()) {
        System.out.println(src.nextDouble());
      } else {
        break;
      }
    }
    fin.close();
  }
}

        

public static String getResponseFromHttpUrl(URL url) throws IOException {
    HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
    try {
        InputStream in = urlConnection.getInputStream();

        Scanner scanner = new Scanner(in);
        scanner.useDelimiter("\\A");

        boolean hasInput = scanner.hasNext();
        String response = null;
        if (hasInput) {
            response = scanner.next();
        }
        scanner.close();
        return response;
    } finally {
        urlConnection.disconnect();
    }
}

        

protected void processLine(String line) {
    if (!line.contains("=") || line.isEmpty()) {
        return;
    }
    //use a second Scanner to parse the content of each line
    Scanner lineScanner = new Scanner(line);
    lineScanner.useDelimiter("=");
    if (lineScanner.hasNext()) {
        String key = lineScanner.next();
        String value = "";
        if (lineScanner.hasNext()) {
            value = lineScanner.next();
        }
        map.put(key, value);
    }
    //no need to call lineScanner.close(), since the source is a String
}

        

public static void parse (
        final List <NameValuePair> parameters,
        final Scanner scanner,
        final String charset) {
    scanner.useDelimiter(PARAMETER_SEPARATOR);
    while (scanner.hasNext()) {
        String name = null;
        String value = null;
        String token = scanner.next();
        int i = token.indexOf(NAME_VALUE_SEPARATOR);
        if (i != -1) {
            name = decodeFormFields(token.substring(0, i).trim(), charset);
            value = decodeFormFields(token.substring(i + 1).trim(), charset);
        } else {
            name = decodeFormFields(token.trim(), charset);
        }
        parameters.add(new BasicNameValuePair(name, value));
    }
}


        

public void read(Integer[][] array) throws FileNotFoundException {
    Scanner scanner = new Scanner(new File("signal.CSV"));
    int columns = 0;
    int row = 0;
    scanner.useDelimiter("\\D+");
    while (scanner.hasNext()) {
        array[row][columns] = scanner.nextInt();
        columns += 1;
        if (columns == 4) {
            columns = 0;
            row += 1;
        }
        //System.out.println(array[0][0]);
    }

    scanner.close();
}

        

public void readFromFile() throws IOException
{
    Scanner in = new Scanner(new BufferedReader(new FileReader(file)));
    try
    {
        in.useDelimiter(",");
        headerLine = in.nextLine(); // Skip header row
        while (in.hasNextLine())
        {
            String srgName = in.next();
            String mcpName = in.next();
            String side = in.nextLine().substring(1);
            srgParamName2ParamCsvData.put(srgName, new ParamCsvData(srgName, mcpName, Integer.valueOf(side)));
        }
    }
    finally
    {
        in.close();
    }
}