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Answer to Question #35702 in Java | JSP | JSF for Amy

Question #35702
Write the body of method called maxFrequency:

public static char maxFrequency(String s){

which takes a string (length >=1) as parameter (containing characters from a to z; only small caps), calculates frequencies of characters in the string and returns the character with maximum frequency. For example, if the parameter string is "abcabcabca", the method returns 'a'.
Expert's answer
public static char maxFrequency(String s) {
int length = s.length();
int[] array = new int[26];
int max = Integer.MIN_VALUE;
int index = 0;
for (int i = 0; i < length; i++) {
array[(int) (s.charAt(i) - 97)]++;
}
for (int i = 0; i < array.length; i++) {
if (max < array[i]) {
max = array[i];
index = i;
}
} char c = (char) (index + 97);
return c;

}

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