[Question 3] ISC 2015 Computer Practical Paper Solved

Click here to download the complete ISC 2015 Computer Science Paper 2 (Practical).

Question:

Write a program to accept a sentence which may be terminated by either ‘.’ or ‘?’ only. The words are to be separated by a single blank space. Print an error message if the input does not terminate with ‘.’ or ‘?’. You can assume that no word in the sentence exceeds 15 characters, so that you get a proper formatted output.

Perform the following tasks:
(i) Convert the first letter of each word to uppercase.
(ii) Find the number of vowels and consonants in each word and display them with proper headings along with the words.

Test your program with the following inputs.

Example 1

INPUT: Intelligence plus character is education.

OUTPUT:
Intelligence Plus Character Is Education

Word	Vowels	Consonants
Intelligence	5	7
Plus	1	3
Character	3	6
Is	1	1
Education	5	4

Example 2

INPUT: God is great.

OUTPUT:
God is Great

Word	Vowels	Consonants
God	1	2
Is	1	1
Great	2	3

Example 3

INPUT: All the best!

OUTPUT:
Invalid Input.

Programming Code:

/**
* The class Q3_ISC2015 inputs a sentence, converts the first letter of each word to
* uppercase and find the number of vowels and consonants
* @author : www.guideforschool.com
* @Program Type : BlueJ Program - Java
* @Question Year : ISC Practical 2015 Question 3
*/
 
import java.util.*;
class Q3_ISC2015
{
    int countVowel(String s) // Function to count no. of vowels in a word
    {
        s = s.toUpperCase();
        int count = 0;
        char ch;
        for(int i=0; i<s.length(); i++)
        {
            ch = s.charAt(i);
            if(ch=='A' || ch=='E' || ch=='I' || ch=='O' || ch=='U')
            {
                count++;
            }
        }
        return count;
    }
     
    String convert(String s) // Function to convert 1st character to UpperCase
    {
        char ch = s.charAt(0); // Extracting the first character
        ch = Character.toUpperCase(ch); // Converting that character to UpperCase
        String f = ch + s.substring(1); // Adding it with the rest of the string
        return f;
    }
    
    String addSpace(String s, int max) // Function for addng extra space to make every word equal in length
    {
        int x = max-s.length();
        for(int i=1; i<=x; 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); // Extracting the last character
          
        /* Checking whether the sentence ends with '.' or '?' or not */
        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 vow, con, max=0;
             
            for(int i=0; i<x; i++)
            {
                word[i] = str.nextToken(); // Extracting words and saving them in an array
                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++)
            {
                vow = ob.countVowel(word[i]);
                con = word[i].length()-vow; // Consonant = Length - Vowel
                y = ob.addSpace(word[i],max);
                System.out.println(y+"\t"+vow+"\t"+con);
            }
        }
    }
}

Output:

Enter a sentence : God is great.
Sentence = God Is Great

Word	Vowels	Consonants
God	1	2
Is	1	1
Great	2	3

Enter a sentence : All the best!
Invalid Input. End a sentence with either ‘.’ or ‘?’