Create HighestFrequencyCharacter.java (aditya109#517)

Programming/Java/HighestFrequencyCharacter/HighestFrequencyCharacter.java

@@ -0,0 +1,36 @@
+package com.company;
+import java.util.HashMap;
+import java.util.Scanner;
+
+//Highest Frequency Character
+
+public class HighestFrequencyCharacter {
+    public static void main(String[] args) {
+
+        Scanner sc = new Scanner(System.in);
+        String str = sc.nextLine();
+
+        HashMap<Character, Integer> hm = new HashMap<>();
+        for (int i = 0; i < str.length(); i++){
+            char ch = str.charAt(i);
+
+            if (hm.containsKey(ch)){
+                int of = hm.get(ch);
+                int nf = of+1;
+                hm.put(ch,nf);
+            }
+            else{
+                hm.put(ch,1);
+            }
+        }
+
+        char mfc = str.charAt(0);
+        for (Character key : hm.keySet()){
+           if(hm.get(key)>hm.get(mfc)){
+               mfc=key;
+           }
+        }
+        System.out.println(mfc);
+
+    }
+}