Introduction

In this demo I have used NetBeans IDE 8.2 for debugging purpose. But you can use any java programming language compiler as per your availability..

import java.util.Scanner;
class Char
{
                    public static void main(String[ ] arg)
                    {
                    int i=0;
    Scanner sc=new Scanner(System.in);
    System.out.println("Enter a character : ");
                    char ch=sc.next( ).charAt(0);	 		
                    if(ch=='a'||ch=='e'||ch=='i'||ch=='o'||ch=='u'||ch=='A'||ch=='E'||ch=='I'||ch=='O'||ch=='U')
                    {
    System.out.println("Entered character "+ch+" is  Vowel"); 
                    }
                    else if((ch>='a'&&ch<='z')||(ch>='A'&&ch<='Z'))
        System.out.println("Entered character "+ch+" is Consonant");
                    else
        System.out.println("Not an alphabet");		
                    }
}

Result