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

4 votes184 views2 answers
How to count the number of occurrences of an element in a arraylist in java
Java
0 vote139 views1 answer
Make a commet in java
Java
0 vote135 views1 answer
Private void loadMaze(String mazeFile)
Java
0 vote130 views1 answer
Deps-jar
Java
65 votes145 views6 answers
Java last element of array
Java
15 votes158 views10 answers
Flutter
Java
1 vote152 views1 answer
Validate date java
Java
2 votes134 views1 answer
Appcompatdelegate.setdefaultnightmode(appcompatdelegate.mode_night_yes) not working
Java
0 vote127 views1 answer
Get runtime java
Java
21 votes117 views6 answers
Convert char to string in java
Java