Thread: Looping through Tokens

Hi, I have a program were I have a string of tokens. I need to determine which tokens are words and which are number. I don't know the method to do this. If there a parseFloat or a parseWord or parseChar of somekind that I could use? Here is the code, hopefully this explains what I'm going for better than how I explained it. Also I know they are all Ints but i need it to work for floating point also.

import java.io.*;
import java.util.*;
 
public class theLoop {
    public static void main(String[] args) {
        String newStr = "Bob 45 34 29 1 87    total      789    total Bob 98 34 23        23          fred 50 50 50 40 total 190";
 
        //Create new String tokenizer
        StringTokenizer StrTok = new StringTokenizer(newStr);
 
        //Set State to 1
        int State = 1;
 
        //Set Loop to run while there are more tokens
        while(StrTok.hasMoreTokens)
        {
            //Make new String for tokens
            String S = StrTok.nextToken();
 
            //Loop for first state
            if (State == 1)
            {
                if (S = //??? a word ???)
                {
                    //Keep the word????, and proceed to next step
                    State = 2;
                }
            }
 
            //Loop for second state
            if (State == 2)
            {
                if (S =  //??? a word ???)
                {
                    //?? Add word to previous word ??
                    State = 2;
                }
                else if (State = //?? a floating-point //??)
                {
                    System.out.println(//the name from before);
                    //?? Remember number
                    State = 3;
                }
            }
            //and so on

Thanks

Quite a few ways to do this...

string.matches("[0-9]*[\\.]*[0-9]+")

Uses a regular expression which should validate an integer or floating point number. You could do the same thing for words:

string.matches("[a-zA-Z]+")

But it can get more complex if you want to include things other than letters. You use the first method to validate for a number, then if it doesn't validate assume its a word.

Thanks, I'll give it a shot.