Hi Friend,

Try the following code:

import java.util.*;
class StringQueries{
   public static boolean isVowel(char s) {
    String st="aeiouAEIOU";
    int i;
    for (i=0;i<10;i++) {
    char ch=st.charAt(i);
    if (ch==s)
    return true;
   }
   return false;
} 
    public static void main(String[] args){
        Scanner input=new Scanner(System.in);
        System.out.println("Enter string: ");
        int count=0;
        int countBlank=0;
        int countNonBlank=0;
        String st=input.nextLine();
        String str=st.replace(" ","");
        char ch[]=str.toCharArray();
        for(int i=0;i<ch.length;i++){
            boolean is=StringQueries.isVowel(ch[i]);
            if(is){
                System.out.println(ch[i]);
                count++;
            }
            else{
                countNonBlank++;
            }
            }
        System.out.println("There is/are "+count+" vowels in the given string.");
        for(int i=0;i<st.length();i++){
        if(Character.isWhitespace(st.charAt(i))){
        countBlank++;
}
        }
        System.out.println("There is/are "+countBlank+" blank charatcers in the given string.");
        System.out.println("There is/are "+countNonBlank+" non blank charatcers in the given string.");
    }
}

Thanks