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 vote299 views1 answer
How do I make my Android app scrollable?
Java
2 votes313 views1 answer
Encoding UTF
Java
0 vote308 views1 answer
Lcm of two large positive integers java
Java
0 vote319 views4 answers
How to stop extending jpa repository to every class in java
Java
16 votes304 views5 answers
Converting char array to string
Java
0 vote307 views1 answer
Retrieve Image from java database.
Java
0 vote379 views2 answers
RecyclerView: No layout manager attached; skipping layout
Java
13 votes302 views3 answers
How to convert double to int in java
Java
0 vote315 views1 answer
Java.lang.classcastexception: java.lang.integer cannot be cast to java.lang.string
Java
2 votes282 views1 answer
Error: java_home is not set and could not be found.
Java