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public class StringCharacters {
public static void main(String[] args) {
String text = "To be or not to be?";
int spaces = 0,
vowels = 0,
letters = 0;
for (int i = 0; i < text.length(); i++) {
char ch = Character.toLowerCase(text.charAt(i));
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u')
++vowels;
if (Character.isLetter(ch))
++letters;
if (Character.isWhitespace(ch))
++spaces;
}
}
}
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