Java Online

import java.lang.*;
public class Level14 {
 public static void main(String[] args) {

  StringBuilder str = new StringBuilder(args[0]);
  int len = str.length();
  if (len < 4) {
   System.out.println("ERROR! LENGTH OF WORD IS INSUFFICIENT");
   return;
  }

  System.out.println("Your word has " + len + " characters.");

  char c1 = str.charAt(0);
  char c4 = str.charAt(3);
  System.out.println("The first character in your phrase is " + c1 + ".");
  System.out.println("The fourth character in your phrase is " + c4 + ".");

  int index = len - 1;
  System.out.println("The index of the last character is " + index);

  char last = str.charAt(len - 1);
  System.out.println("The last character in your phrase is " + last + ".");

  int i = 0;
  int n = 0;

  while (i < str.length()) {
   char c = str.charAt(i);
   if (c == 't' || c == 'T') {
    n++;
   }
   i++;
  }
  System.out.println("The number of t's or T's (combined) is " + n);

  i = 0;
  n = 0;
  while (i < str.length()) {
   char c = str.charAt(i);
   if (str.charAt(i) == 'a' || str.charAt(i) == 'e' || str.charAt(i) == 'i' || str.charAt(i) == 'o' || str.charAt(i) == 'u' || str.charAt(i) == 'A' || str.charAt(i) == 'E' || str.charAt(i) == 'I' || str.charAt(i) == 'O' || str.charAt(i) == 'U') {
    n++;
   }
   i++;
  }
  System.out.println("Your word has " + n + " vowels.");

  int d = len - n;
  System.out.println("Your word has " + d + " non-vowels.");

  StringBuilder strn = new StringBuilder(args[0]);
  System.out.println("Your word in reverse order is " + strn.reverse());

 }
}