scann and split issue

[Rashid Mian]

I am confused why no. of tokens in Scanner and Split are differnt(though using same regex).
Please explain in detail how these two different aproaches work to scan inputs.

 import java.util.InputMismatchException;
import java.util.NoSuchElementException;
import java.util.Scanner;
 
public class ScanIn{
public static void main(String[] args) {
 
  try {
    Scanner s = new Scanner("boo:and:foo");
    s.useDelimiter("o");
    String token="";
    int i;
    boolean b;
     
   while(s.hasNext() )
   {    
   token= s.next();
   System.out.println(">"+token+"<");
   }
 
//   System.out.println(token);
 
    
    }catch(InputMismatchException e ){System.out.println("Excp Input mismatch"+e.getMessage());} 
  catch(NoSuchElementException e ){System.out.println("Excp No Such element"+e.getMessage());}
  catch(IllegalStateException e ){System.out.println("Excp Illegabl"+e.getMessage());}
}
  
}
   

  import java.util.*;
class SplitTest {
  public static void main(String[] args) {
    String[] tokens = "boo:and:foo" .split("o" ) ;
    System.out.println("count " + tokens.length);
    for(String s : tokens)
      System.out.println(">" + s + "<");
  }
}
  

[Jim Yingst]

I recommend you check the API for split(String) and compare it with the documentation for split(String, int). The answer lies there.