Convert First Letter to Uppercase and Count Vowels Program in Java and Python

/**
* The class Q3_ISC2015 inputs a sentence, converts the first letter
* of each word to uppercase and counts vowels and consonants.
* @author : www.guideforschool.com
* @Program Type : BlueJ Program - Java
* @Question Year : ISC Practical 2015 Question 3
*/

import java.util.Scanner;
import java.util.StringTokenizer;

class Q3_ISC2015
{
    int countVowel(String s)
    {
        s = s.toUpperCase();
        int count = 0;

        // Count all uppercase vowels in the word.
        for(int i = 0; i < s.length(); i++)
        {
            char ch = s.charAt(i);

            if(ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U')
            {
                count++;
            }
        }

        return count;
    }

    String convert(String s)
    {
        // Convert only the first character to uppercase.
        char ch = s.charAt(0);
        ch = Character.toUpperCase(ch);

        return ch + s.substring(1);
    }

    String addSpace(String s, int max)
    {
        int extra = max - s.length();

        // Add extra spaces to align all words in the table.
        for(int i = 1; i <= extra; i++)
        {
            s = s + " ";
        }

        return s;
    }

    public static void main(String args[])
    {
        Q3_ISC2015 ob = new Q3_ISC2015();
        Scanner sc = new Scanner(System.in);

        System.out.print("Enter a sentence : ");
        String s = sc.nextLine();

        int l = s.length();
        char last = s.charAt(l - 1);

        // The sentence must end with either a full stop or a question mark.
        if(last != '.' && last != '?')
        {
            System.out.println("Invalid Input. End a sentence with either '.' or '?'");
        }
        else
        {
            StringTokenizer str = new StringTokenizer(s, " .?");
            int x = str.countTokens();
            String ans = "";
            String word[] = new String[x];
            int max = 0;

            for(int i = 0; i < x; i++)
            {
                word[i] = str.nextToken();
                ans = ans + " " + ob.convert(word[i]);

                if(word[i].length() > max)
                {
                    max = word[i].length();
                }
            }

            System.out.println("Sentence = " + ans.trim());

            String y = ob.addSpace("Word", max);
            System.out.println(y + "\tVowels\tConsonant");

            for(int i = 0; i < x; i++)
            {
                int vow = ob.countVowel(word[i]);
                int con = word[i].length() - vow;

                y = ob.addSpace(word[i], max);
                System.out.println(y + "\t" + vow + "\t" + con);
            }
        }
    }
}

# Program to convert the first letter of each word to uppercase
# and count vowels and consonants in every word.

sentence = input("Enter a sentence : ")

last = sentence[-1]

if last != "." and last != "?":
    print("Invalid Input. End a sentence with either '.' or '?'")
else:
    # Remove the ending punctuation and split the sentence into words.
    words = sentence[:-1].split(" ")

    converted_words = []
    max_length = 0

    for word in words:
        # Convert only the first character to uppercase.
        converted = word[0].upper() + word[1:]
        converted_words.append(converted)

        if len(word) > max_length:
            max_length = len(word)

    print("Sentence =", " ".join(converted_words))

    print("Word".ljust(max_length), "\tVowels\tConsonant")

    for word in words:
        vowel_count = 0

        # Count vowels after converting the word to uppercase.
        for ch in word.upper():
            if ch in "AEIOU":
                vowel_count += 1

        consonant_count = len(word) - vowel_count
        print(word.ljust(max_length), "\t", vowel_count, "\t", consonant_count, sep="")