Convert String to Title Case

You are given any string. Write a code to convert the string to Title Case. Use ' '(single space) as the delimiter in the string.

public String convertToTitle(String string)

Example
1. Test String Has Multiple Words Seperated By Single Space
  Input: hello welcome to j2sehunt
  Output: Hello Welcome to J2sehunt

2. Test String already in Title Case. In such case Input and Output remains same.
  Input: Hello Welcome to J2sehunt
  Output: Hello Welcome to J2sehunt

3. Test String where String With Words Having First Letter In Small Case And Few Or All Letters In Capital Case
  Input: hELLO wELCOME tO j2SEHUNT
  Output: Hello Welcome to J2sehunt

package com.blogspot.j2sehunt;

public class Client {

    /**
     * @param args
     */
   
    public String convertToTitle(String string) {
        String result = "";
        for(int i = 0; i < string.length(); i++) {
            String next = string.substring(i, i+1);
           
            if(i == 0) {
                result += next.toUpperCase();
            } else {
                if(string.charAt(i-1)== ' ') {
                    result += next.toUpperCase();
                } else {
                    result += next.toLowerCase();
                }
            }
        }
        return result;
    }
   
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Client c = new Client();
        System.out.println(c.convertToTitle("wel come to Java"));
        System.out.println(c.convertToTitle("hello welcome to j2sehunt"));
        System.out.println(c.convertToTitle("Hello Welcome to J2sehunt"));
        System.out.println(c.convertToTitle("hELLO wELCOME tO j2SEHUNT"));

    }

}