get frequency of letters java
HashMap<Character, Integer> map = new HashMap<Character, Integer>();
String s = "aasjjikkk";
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
Integer val = map.get(c);
if (val != null) {
map.put(c, new Integer(val + 1));
}
else {
map.put(c, 1);
}
}Copyright © 2021 Codeinu
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