Scanner trouble...

Question

Hello!
My program is supposed to determine the number of vowels in a sentence. The problem is trying to get the sentence from the user. This is the program and it's not working. The program just stops after the user input and does nothing else.
import java.util.*;
public class Main {
static String vowels = "aeiou";
public static void main(String[] args)
     Scanner sc = new Scanner(System.in);
     String something = "";
     System.out.println("Write something : ");
     do
         something += sc.next();
     while (sc.hasNext());
for (int i = 0;i<something.length(); i++)
        if (vowels.indexOf(something.charAt(i)) >= 0)
            t++;
    System.out.println("There are " + t +
            " vowels in this sentence:  ");
    System.out.println(something);
}I have also tried this:
import java.util.*;
public class Main {
static String vowels = "aeiou";
public static void main(String[] args)
     Scanner sc = new Scanner(System.in);
     String something = "";
     System.out.println("Write something : ");
     something = sc.next();
for (int i = 0;i<something.length(); i++)
        if (vowels.indexOf(something.charAt(i)) >= 0)
            t++;
    System.out.println("There are " + t +
            " vowels in this sentence:  ");
    System.out.println(something);
}but this time, if I have no vowels in the user input, I get 0, if I have one or more vowels, even if they are different, I still get only 1. Where did I go wrong?
Edited by: MissAlexa on Aug 15, 2008 5:05 AM
Edited by: MissAlexa on Aug 15, 2008 5:06 AM

Answer 1

For one thing your variable "t" is never declared
Changing your code to this seems to work fine for me:
     import java.util.*;
     public class Main {
     static String vowels = "aeiou";
     public static void main(String[] args)
          Scanner sc = new Scanner(System.in);
          String something = "";
          int t = 0;
          System.out.println("Write something : ");
          something = sc.next();
     for (int i = 0;i<something.length(); i++)
             if (vowels.indexOf(something.charAt(i)) >= 0)
                 t++;
         System.out.println("There are " + t +
                 " vowels in this sentence:  ");
         System.out.println(something);
     }Edited by: jnaish on Aug 15, 2008 5:44 AM