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 vote188 views1 answer
Intent from notification with extra to activity
Java
0 vote139 views1 answer
How to get app categories android packagemanager
Java
4 votes156 views1 answer
Type variable java
Java
0 vote144 views1 answer
Get value from 2d array java
Java
5 votes134 views1 answer
Java check data type
Java
2 votes136 views1 answer
String to double java exception
Java
0 vote142 views1 answer
How to check instance
Java
0 vote140 views1 answer
Java application
Java
1 vote166 views2 answers
How to generate random id in java
Java
4 votes191 views2 answers
How to count the number of occurrences of an element in a arraylist in java
Java