StringDetails.java

import java.util.Scanner;

public class StringDetails {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		System.out.print("Input a String: ");
		String str = in.nextLine();

		//if your remove this, spaces would be counted as special character
		str = str.replace(" ", "").trim();

		int noOfCharacters = str.length();
		int noOfVowels = 0;
		int noOfConsonants = 0;
		int noOfUpperCase = 0;
		int noOfLowerCase = 0;
		int noOfDigits = 0;
		int noOfSpecialCharacter = 0;
		for (char x :str.toCharArray()) {
			if(Character.isDigit(x)){
				noOfDigits++;
			}
			else if(Character.isAlphabetic(x)){
				if(Character.isUpperCase(x)){
					noOfUpperCase++;
				}else{
					noOfLowerCase++;
				}

				if(isVowel(x)){
					noOfVowels++;
				}else{
					noOfConsonants++;
				}
			}
			else{
				noOfSpecialCharacter++;
			}
		}

		System.out.println("Number of Characters: " + noOfCharacters);
		System.out.println("Number of Vowels: " + noOfVowels);
		System.out.println("Number of Consonants: " + noOfConsonants);
		System.out.println("Number of UPPERCASE: " + noOfUpperCase);
		System.out.println("Number of lowercase : " + noOfLowerCase);
		System.out.println("Number of Digits: " + noOfDigits);
		System.out.println("Number of Special Characters: " + noOfSpecialCharacter);
	}

	public static boolean isVowel(char c) {
		  return "AEIOUaeiou".indexOf(c) != -1;
	}
}