Create OccurenceOfCharInString

OccurenceOfCharInString

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+import java.io.*;
+import java.util.*;
+class OccurenceOfCharInString {
+    static void characterCount(String inputString)
+    {
+        // Creating a HashMap containing char
+        // as a key and occurrences as  a value
+        HashMap<Character, Integer> charCountMap
+            = new HashMap<Character, Integer>();
+
+        // Converting given string to char array
+
+        char[] strArray = inputString.toCharArray();
+
+        // checking each char of strArray
+        for (char c : strArray) {
+            if (charCountMap.containsKey(c)) {
+
+                // If char is present in charCountMap,
+                // incrementing it's count by 1
+                charCountMap.put(c, charCountMap.get(c) + 1);
+            }
+            else {
+
+                // If char is not present in charCountMap,
+                // putting this char to charCountMap with 1 as it's value
+                charCountMap.put(c, 1);
+            }
+        }
+
+        // Printing the charCountMap
+        for (Map.Entry entry : charCountMap.entrySet()) {
+            System.out.println(entry.getKey() + " " + entry.getValue());
+        }
+    }