Question

Define a class to accept a string and convert it into uppercase. Count and display the number of vowels in it.

Input:	robotics
Output:	ROBOTICS
Number of vowels:	3

Answer 1

import java.util.Scanner;
class VowelCount
{
   public static void main(String args[])
   {
       Scanner sc=new Scanner(System.in);
       System.out.println("Enter a word");
       String str=sc.next().toUpperCase();//string converted to upper case
       int len=str.length();
       int count=0;
       for(int i=0;i<len;i++)
       {
           char c=str.charAt(i);//extracting each character from the string
           if(c=='A'||c=='E'||c=='T' ||c=='O'||c=='U')
           count++;
       }
       System.out.println(str+"\nNumber of vowels: "+count);
   }
}