[JAVA] [ICSE 2005 Answer 5] Calculating Number Of Vowels & Reverse String

Question:

ICSE 2005 Question 5

Write a program to input any given string to calculate the total number of characters and vowels present in the string and also reverse the string.

Example:

INPUT

Enter string : SNOWY

OUTPUT

Total number of characters :  05

Name of vowels             :  01

Reverse string             :  YWONS

Source Code:

import java.util.*;

public class ICSE2005_5

{

    public static void main(String args[])

    {

        Scanner read=new Scanner(System.in);

        System.out.print("Enter string : ");

        String n=read.next();

        int length=n.length();

        String reverse="";

        int vowel=0;

        for(int i=(length-1); i>=0; i--)

        {

            char c=n.charAt(i);

            if(c=='A'||c=='E'||c=='I'||c=='O'||c=='U'||c=='a'||c=='e'||c=='i'||c=='o'||c=='u')

                vowel++;

            reverse+=c;

        }

        System.out.println("Total number of characters : \t"+length+"\nName of vowels : \t\t"+vowel+"\nReverse string : \t\t"+reverse);

    }

}

Result:

OUTPUT:

Enter string : Pneumonoultramicroscopicsilicovolcanoconiosis

Total number of characters : 45

Name of vowels :                    20

Reverse string :                       sisoinoconaclovociliscipocsorcimartluonomuenP