A PROGRAM IN JAVA TO FIND THE NUMBER OF SENTENCES,VOWEL , AND WORD IN A STRING!!!

/* In this program , we are taking out the number of vowels, words and sentences in a paragraph
 * We first run a loop to take out each character of the paragraph
 * Then we check whether the it is the end of the sentence which is marked by '!' , '.' or '?'
 * If it is the end of the sentence , then we take out each word from the sentence
 * From each word we extract each alphabet
 * Then we check whether the alphabet is a vowel or not
 * So here we go :
 */    

class Parts_of_a_paragraph//Here have assumed that there is no space between the ending alphabet of the sentence and '.' , '?' or '!' and also between the first alphabet of the next sentence
    {
        void main(String paragraph)
        {
          paragraph = paragraph+" ";
            int len = paragraph.length() , no_sentence = 0 , no_vowel = 0 , no_word = 0 ;
            String word = "" ;
            String sentence ="" ;
            char character , var , ch;
            System.out.println("Sentence   No. of vowels   No. of words");
            for(int i = 0 ; i<len ; i++)
            {
                character = paragraph.charAt(i);//To extract the each character from the paragraph
                if((character=='.')||(character=='!')||(character=='?'))//check whether it is the end of the                           sentence
                {
                    no_sentence++;
                    sentence = sentence+" ";
                    for(int j = 0 ; j<(sentence.length()) ; j++)
                    {
                       var = sentence.charAt(j);//To extract each character from the sentence
                       if(var==' ')//to check whether it is the end of the word
                        {
                           word = word +" ";
                           no_word++;
                           for(int v = 0 ; v<(word.length()) ; v++)
                            {
                                ch = word.charAt(v);//To extract each character from the word
                               if((ch=='a')||(ch=='A')||(ch=='E')||(ch=='e')||(ch=='I')||(ch=='i')||(ch=='o')||(ch=='O')||                                 (ch=='u')||(ch=='U'))//to check whether ch is a vowel
                                {
                                    no_vowel++;
                                    }
                                else
                                ;//a null statement
                            }
                            word = "";
                               }
                        else
                        {
                            word = word + var ;
                        }
                            }
                        System.out.println(" "+no_sentence+"  \t   "+no_vowel+"             "+no_word);
                        no_vowel = 0 ; no_word = 0 ;
                        sentence = "";
                        }
                        else
                                 sentence = sentence + character;
                            }
                        }
                    }

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