diff --git a/pom.xml b/pom.xml
index 2a6372d..12152c6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,6 +7,18 @@
     <groupId>io.zipcoder</groupId>
     <artifactId>InterviewProblem1</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
     <dependencies>
         <!-- https://mvnrepository.com/artifact/junit/junit -->
diff --git a/src/main/java/io/zipcoder/Problem1.java b/src/main/java/io/zipcoder/Problem1.java
index 6cd6024..44a4945 100644
--- a/src/main/java/io/zipcoder/Problem1.java
+++ b/src/main/java/io/zipcoder/Problem1.java
@@ -1,4 +1,41 @@
 package io.zipcoder;
 
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Collectors;
+
 public class Problem1 {
+
+    public static void main(String[] args) {
+
+        replaceChar();
+
+    }
+
+    public static void replaceChar() {
+
+        HashMap<Character, Character> map = new HashMap<>();
+        // ‘f’ : ‘7’, ‘s’:’$’, ‘1’:’!’, ‘a’.:’@’
+        map.put('f', '7');
+        map.put('s', '$');
+        map.put('1', '!');
+        map.put('a', '@');
+
+        String text = "The Farmer went to the store to get 1 dollar’s worth of fertilizer";
+
+        char[] splitString = text.toCharArray();
+
+        for (int i = 0; i < splitString.length; i++) {
+            if (map.containsKey(splitString[i])) {
+                splitString[i] = map.get(splitString[i]);
+            }
+        }
+
+        System.out.println(new String(splitString));
+
+
+    }
+
+
 }