Add fix for problem 2325 (fishercoder1534#173)

* add fix for 2325

* add fix for 2325

Author: ashmichheda

src/main/java/com/fishercoder/solutions/_2325.java

@@ -31,5 +31,29 @@ public String decodeMessage(String key, String message) {
             return sb.toString();
         }
     }
+    public static class Solution2 {
 
+        public String decodeMessage(String key, String message) {
+            // put first occurrence of each char of key in hashmap, where  k = char in key, v = incremental a - z alphabets
+
+            Map<Character, Character> bucket = new HashMap<>();
+            char ch = 'a';
+            char keyArr[] = key.toCharArray();
+            StringBuilder result = new StringBuilder();
+
+            for(int i = 0; i < keyArr.length; i++) {
+                if (keyArr[i] != ' ' && !bucket.containsKey(keyArr[i])) {
+                    bucket.put(keyArr[i], ch++);
+                }
+            }
+
+            // decode the message using the bucket
+            char msgArr[] = message.toCharArray();
+            for(int i = 0; i < msgArr.length; i++) {
+                if(msgArr[i] == ' ') result.append(" ");
+                else result.append(bucket.get(msgArr[i]));
+            }
+            return result.toString();
+        }
+    }
 }

src/test/java/com/fishercoder/_2325Test.java

@@ -0,0 +1,26 @@
+package com.fishercoder;
+
+import com.fishercoder.solutions._2325;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class _2325Test {
+    private static _2325.Solution2 solution2;
+    private String key;
+    private String message;
+
+    @BeforeClass
+    public static void setup() {
+        solution2 = new _2325.Solution2();
+    }
+
+    @Test
+    public void test1() {
+        key = "the quick brown fox jumps over the lazy dog";
+        message = "vkbs bs t suepuv";
+        String actual = solution2.decodeMessage(key, message);
+        String expected = "this is a secret";
+        Assert.assertEquals(actual, expected);
+    }
+}