I am giving you another method to tockenize your string if you dont want to use the split method.Here is the method
public static void main(String args[]) throws Exception
{
String str="This is different type of file.Can not split it using ' '(white space)";
StringTokenizer st = new StringTokenizer(str, " ");
while(st.hasMoreElements())
System.out.println(st.nextToken());
}
}