done

src/main/java/HamletParser.java

@@ -1,6 +1,8 @@
 import java.io.File;
 import java.io.IOException;
 import java.util.Scanner;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 /**
  * Created by thook on 10/7/15.
@@ -36,4 +38,39 @@ public class HamletParser {
         return hamletData;
     }
 
+
+    public int findHamlet() {
+        Pattern pattern = Pattern.compile("(?i)Hamlet");
+        Matcher matcher = pattern.matcher(hamletData);
+        int count = 0;
+
+        while (matcher.find()) {
+            count++;
+        }
+        return count;
+    }
+
+    public int findHoratio() {
+        Pattern pattern = Pattern.compile("(?i)Horatio");
+        Matcher matcher = pattern.matcher(hamletData);
+        int count = 0;
+
+        while (matcher.find()){
+            count++;
+        }
+        return count;
+    }
+
+    public String changeHamletToLeon() {
+
+        Pattern pattern = Pattern.compile(hamletData);
+        Matcher matcher = pattern.matcher("Leon");
+        return matcher.replaceAll("Hamlet");
+    }
+
+    public String changeHoratioToTariq() {
+        Pattern pattern = Pattern.compile(hamletData);
+        Matcher matcher = pattern.matcher("Tariq");
+        return matcher.replaceAll("Horatio");
+    }
 }

src/test/java/HamletParserTest.java

@@ -15,17 +15,47 @@ public class HamletParserTest {
 
     @Test
     public void testChangeHamletToLeon() {
+        //Given
+        HamletParser hp = new HamletParser();
+        //When
+        String expected = "Leon";
+        String actual = hp.changeHamletToLeon();
+        //Then
+        assertEquals(expected, actual);
     }
 
     @Test
     public void testChangeHoratioToTariq() {
+        //Given
+        HamletParser hp = new HamletParser();
+        //When
+        String expected = "Tariq";
+        String actual = hp.changeHoratioToTariq();
+        //Then
+        assertEquals(expected, actual);
     }
 
     @Test
     public void testFindHoratio() {
+        //Given
+        HamletParser hp = new HamletParser();
+        //When
+        int expected = 158;
+        int actual = hp.findHoratio();
+        //Then
+        assertEquals(expected, actual, 0);
     }
 
     @Test
     public void testFindHamlet() {
+        //Given
+        HamletParser hp = new HamletParser();
+        //When
+        int expected = 472;
+        int actual = hp.findHamlet();
+        //Then
+        assertEquals(expected, actual, 0);
     }
+
+
 }