String analyser help!

Question

hi all....
am new to java and new to the forum as well...
i am having a slite problem with a string analyser class..
its supposed to obtain string input from user; as a sentence and count...
1. number of alphabetic characters in the
entire sentence.
2. number of numeric characters in the entire
sentence.
3. number of words in the entire sentence.
4. average number of characters per word.
5. length of longest word(in characters)
6. percentage of capital characters over all
non-blank characters.
7. number of vowels and consonants.
each in in a separate method!
i have started the implementation....
and i specifically started with counting the words, using StringTokenizer class...
the program worked fine until when i tried converting the code into a method,,
// reads and prints String in input
// until a null string is entered
import java.io.*;
import java.util.StringTokenizer;
public class StringAnalyser {
// Beginning of method main
public static void main(String[] args) throws IOException {
// create a text input stream
BufferedReader stdin = new BufferedReader (new InputStreamReader (System.in));
// to do the splitting we need a new instance
// of StringTokenizer
StringTokenizer strReader;
// Variables Declaration Here     
int count = 0;
int i =0;
// Prompting the user to input todays's exchange rate
System.out.println("Enter a sentence:");
// read the next line and tokenize it
strReader = new StringTokenizer (stdin.readLine());
while (strReader.countTokens() > 0) { // still input
count = strReader.countTokens();
while (count > 0) { // process this line
// System.out.println("The next word is: " + strReader.nextToken());
i++;
count--;
} // finish processing line
// read the next line and tokenize it
strReader = new StringTokenizer(stdin.readLine());
System.out.println("The number of words is: " + i);
i hope am using the right logic to solve the problem....
and if i am,
could you please help me fixing my errors!
thank you in advance...
regards!

Answer 1

StringAnalyser.java:104: cannot resolve symbol
symbol : method length ()
location : class java.util.StringTokenizer
for (int i=0; i<strReader.length(); i++) {This error is because strReader is a StringTokenizer
and not a String.
If you want to get every char in the input line you
can use the line you have like,
String s = stdin.readLine()); // one input line as a
String
for (int i=0; i<s.length(); i++) {
char ch = s.charAt(i);
// do something with the char
hi again...
am trying to use a method to inspect punctuation letters...
i only dont know if the method declaration is correct!!
please help!
// reads and prints String in input
// until a null string is entered
import java.io.*;
import java.util.*;
public class StringAnalyser {
// Beginning of method main
public static void main(String[] args) throws IOException {
// create a text input stream
BufferedReader stdin = new BufferedReader (new InputStreamReader (System.in));
// to do the splitting we need a new instance
// of StringTokenizer
StringTokenizer strReader;
// Variables Declaration Here     
int isLetter = 0;
int isDigit = 0;
int isLowerCase = 0;
int isUpperCase = 0;
int isPunctuation = 0;
// Prompting the user to input a sentence
System.out.println("\n\nEnter a sentence:");
// read the next line and tokenize it
// strReader = new StringTokenizer (stdin.readLine());
String input = stdin.readLine();
for (int i=0; i<input.length(); i++) {  
char ch = input.charAt(i); // do something with the char
if (Character.isLetter(ch)) {      // determines whether or not a
isLetter++; // character is a letter
if (Character.isDigit(ch)) {       // determines whether or not a
isDigit++; // character is a digit
if (Character.isLowerCase(ch)) {   // determines whether or not a 
isLowerCase++; // character is a lowercase
if (Character.isUpperCase(ch)) {   // determines whether or not a
isUpperCase++; // character is an uppercase
if (Character.isPunctuation(ch)) { // determines whether or not a   <------- this is line no. 126
isPunctuation++; // character is a punctuation letter
System.out.println("There is: " + isLetter + " letters in your statement.");
System.out.println("There is: " + isDigit + " digits in your statement.");
System.out.println("There is: " + isLowerCase + " lowercase letters in your statement.");
System.out.println("There is: " + isUpperCase + " uppercase letters in your statement.");
System.out.println("There is: " + isPunctuation + " punctuation letters in your statement.");
private boolean isPunctuation(char ch){
String punctuactionChars = ",.:;'\"!?";
return punctuactionChars.indexOf(ch)>=0?true:false;
am getting the following error:
StringAnalyser.java:126: cannot resolve symbol
symbol : method isPunctuation (char)
location: class java.lang.Character
if (Character.isPunctuation(ch)) { // determines whether or not a
^
1 error
any hints?
thank you in advance....
regards!