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);
   }
}

Source: stackoverflow.com

Similar codes

1 vote110 views1 answer
How to print the index of an array in java
Java
0 vote156 views1 answer
Java read first line of file
Java
0 vote89 views1 answer
Jenna fischer that 70s show
Java
2 votes50 views1 answer
Primefaces calendar min date validation
Java
0 vote66 views1 answer
How to sort 2d array in java using stream api
Java
0 vote98 views1 answer
How to initialize a string in java
Java
97 votes41 views8 answers
How to initialize an array in java
Java
0 vote93 views1 answer
Isinstance java
Java
0 vote45 views1 answer
Lowercase a character java
Java
5 votes95 views9 answers
Search
Java