updated

pom.xml

     <groupId>com.zipcodewilmington</groupId>
     <artifactId>regex</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>7</source>
+                    <target>7</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
     <dependencies>
         <dependency>

src/main/java/HamletParser.java

-import java.io.File;
-import java.io.IOException;
+import java.io.*;
 import java.util.Scanner;
 
 /**
     private String loadFile(){
         ClassLoader classLoader = getClass().getClassLoader();
         File file = new File(classLoader.getResource("hamlet.txt").getFile());
-        StringBuilder result = new StringBuilder("");
+        StringBuilder result = new StringBuilder();
 
         try(Scanner scanner = new Scanner(file)){
             while(scanner.hasNextLine()){
                 String line = scanner.nextLine();
                 result.append(line).append("\n");
             }
-
-            scanner.close();
         }catch(IOException e){
             e.printStackTrace();
         }
         return hamletData;
     }
 
+
+    public String modifyFile(String filepath, String oldString, String newString){
+        ClassLoader classLoader = getClass().getClassLoader();
+
+        File fileToBeModified = new File(classLoader.getResource("hamlet.txt").getFile());
+
+        String oldContent = "";
+        BufferedReader reader = null;
+        FileWriter writer = null;
+
+        try{
+            reader = new BufferedReader(new FileReader(fileToBeModified));
+
+            String line = reader.readLine();
+            while(line != null)
+            {
+                oldContent = oldContent + line + System.lineSeparator();
+
+                line = reader.readLine();
+            }
+
+            String newContent = oldContent.replaceAll(oldString,newString);
+
+            writer = new FileWriter(fileToBeModified);
+            writer.write(newContent);
+        }
+        catch(IOException e)
+        {
+            e.printStackTrace();
+        }
+
+        return filepath;
+    }
+
+//    public String modifiedFile(){}
+
+    public static void main(String[] args) {
+        HamletParser hamletParser = new HamletParser();
+
+        String hamletFile = hamletParser.loadFile();
+
+        System.out.println(hamletParser.hamletData);
+
+    }
 }

src/test/java/HamletParserTest.java

 
     @Test
     public void testChangeHamletToLeon() {
+
+        hamletParser.getHamletData();
+        String expected = hamletParser.modifyFile(hamletText,"Hamlet","Leon");
+
+        System.out.println(expected);
+
     }
 
     @Test
     public void testChangeHoratioToTariq() {
+
+        hamletParser.getHamletData();
+        String expected = hamletParser.modifyFile(hamletText,"Horatio","Tariq");
+
+        System.out.println(expected);
     }
 
     @Test
     public void testFindHoratio() {
+
+        hamletParser.getHamletData();
+        String expected = hamletParser.modifyFile(hamletText,"Tariq","Horatio");
+
+        System.out.println(expected);
     }
 
     @Test
     public void testFindHamlet() {
+
+        hamletParser.getHamletData();
+        String expected = hamletParser.modifyFile(hamletText,"Leon","Hamlet");
+
+        System.out.println(expected);
     }
 }