public static void main(String[] args) {

int[] a = {5,6,7,9}; //5,6,7,19

int[] m = new int[4]; //5,11,18,19

m[0] = a [0];

char c = 55;

for (int i=0; i <a.length-1; i++){

m [i+1] = Math.max (m[i] + a [i+1], a[i+1]);

}

strVar("HellO");

strVar("There is a quite mouse");

revStr("I am happy");

}

public static void strVar(String input){

char[] a = input.toCharArray();

int countV = 0, countC = 0;

for(int i=0; i<a.length; i++){

if(a[i] == 'a' || a[i] == 'e' || a[i] == 'i' | a[i] == 'o' || a[i] == 'u' || a[i] == 'y') countV++;

else if(a[i] == ' ') continue;

else countC++;

}

System.out.println(countV);

System.out.println(countC);

}

public static void revStr(String input){

Stack<Character> s = new Stack<>();

for(int i=0; i<input.length(); i++){

s.add(new Character(input.charAt(i)));

}

System.out.println(s);

}