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

0 vote202 views1 answer
Java netbeans textfield only numbers
Java
0 vote202 views1 answer
Toast no android
Java
0 vote197 views1 answer
Search in row and column sorted matrix leetcode
Java
6 votes171 views4 answers
Capitalize string java
Java
3 votes181 views2 answers
Java hashmap time complexity
Java
0 vote131 views1 answer
Javafx fxmlloader location is not set
Java
0 vote153 views1 answer
Getcokor from drawable in java android studio
Java
4 votes236 views10 answers
Array
Java
138 votes524 views5 answers
Json to java object
Java
1 vote182 views1 answer
Java jdk java_home home ubuntu openjdk-8-jdk
Java