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.
@@ -13,6 +15,54 @@ public class HamletParser {
         this.hamletData = loadFile();
     }
 
+    public static String findHamlet(String book) {
+        Pattern p = Pattern.compile("Hamlet");
+        Matcher m = p.matcher(book);
+
+        String str = null;
+        if (m.find()){
+            str = m.group();
+
+        }else{
+            return null;
+        }
+        return str;
+
+    }
+
+    public static String findHoratio(String book) {
+
+        Pattern p = Pattern.compile("[HoratioHORATIO]");
+        Matcher m = p.matcher(book);
+
+        String str;
+
+        if(m.find()){
+            str = m.group();
+        } else {
+            return null;
+        }
+        return str;
+    }
+
+    public static String changeToLeon(String book) {
+        Pattern p = Pattern.compile(book);
+        Matcher m = p.matcher(book.toLowerCase());
+
+        book = m.replaceAll("leon");
+
+        return book;
+    }
+
+    public static String changeToTariq(String book) {
+        Pattern p = Pattern.compile(book);
+        Matcher m = p.matcher(book.toLowerCase());
+
+        book = m.replaceAll("tariq");
+
+        return book;
+    }
+
     private String loadFile(){
         ClassLoader classLoader = getClass().getClassLoader();
         File file = new File(classLoader.getResource("hamlet.txt").getFile());

src/test/java/HamletParserTest.java

@@ -1,3 +1,4 @@
+import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -15,17 +16,45 @@ public class HamletParserTest {
 
     @Test
     public void testChangeHamletToLeon() {
+
+        String book = hamletText;
+
+        String actual = HamletParser.changeToLeon(book);
+        Assert.assertTrue(actual.contains("leon"));
+        //research .replace
+
+
     }
 
     @Test
     public void testChangeHoratioToTariq() {
+        String book = hamletText;
+
+        String actual = HamletParser.changeToTariq(book);
+        Assert.assertTrue(actual.contains("Tariq"));
+        //research .replace
     }
 
     @Test
     public void testFindHoratio() {
+        String book = hamletText;
+
+        String expected = "Horatio";
+
+        String actual = HamletParser.findHoratio(book);
+
+        Assert.assertEquals(expected, actual);
+        //repeat find hamlet
     }
 
     @Test
     public void testFindHamlet() {
+        String book = hamletText;
+
+        String expected = "Hamlet";
+
+        String actual = HamletParser.findHamlet(book);
+
+        Assert.assertEquals(expected, actual);
     }
 }