[T4A7][F11-A2]Deng Yue

src/seedu/addressbook/data/person/Name.java

@@ -42,6 +42,31 @@ public static boolean isValidName(String test) {
     public List<String> getWordsInName() {
         return Arrays.asList(fullName.split("\\s+"));
     }
+
+    /**
+     * Returns true of the other name is very similar to this name.
+     * Two names are considered similar if ...
+     */
+     public boolean isSimilar(Name other) {
+         if(this.fullName.equals(other.fullName)) {
+             return true;
+         } else if (this.fullName.equalsIgnoreCase(other.fullName.toLowerCase())) {
+             return true;
+         } else if (containsSubstring(this.fullName, other.fullName)) {
+             return true;
+         } 
+         return false;
+     }
+
+     public boolean containsSubstring(String s1, String s2) {
+         String s1LowerCase = s1.toLowerCase();
+         String s2LowerCase = s2.toLowerCase();
+         String[] otherArray = s2LowerCase.split(" ");
+             for(String s : otherArray) {
+                 if(s1LowerCase.contains(s)) return true;
+             }
+         return false;
+     }
 
     @Override
     public String toString() {

test/java/seedu/addressbook/data/person/NameTest.java

@@ -0,0 +1,44 @@
+package seedu.addressbook.data.person;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+import seedu.addressbook.data.exception.IllegalValueException;
+
+public class NameTest {
+
+    @Test
+    public void isSimilar() {
+        try {
+            Name name = new Name("John K Smith");
+
+            //same string
+            assertTrue(name.isSimilar(new Name("John K Smith")));
+
+            //same letters with different cases;
+            assertTrue(name.isSimilar(new Name("JOHN K SMITH")));
+            assertTrue(name.isSimilar(new Name("JOHN K smith")));
+            assertTrue(name.isSimilar(new Name("JohN K Smith")));
+
+            //same first name or middle name or last name
+            assertTrue(name.isSimilar(new Name("John")));
+            assertTrue(name.isSimilar(new Name("K")));
+            assertTrue(name.isSimilar(new Name("Smith")));            
+            assertTrue(name.isSimilar(new Name("John K")));
+
+            //same letters in first name or middle name with different cases
+            assertTrue(name.isSimilar(new Name("JOHN")));
+            assertTrue(name.isSimilar(new Name("k")));
+            assertTrue(name.isSimilar(new Name("SmITh")));            
+            assertTrue(name.isSimilar(new Name("JoHn K")));
+
+            //not similar
+            assertFalse(name.isSimilar(new Name("johnn kk smithh")));
+            assertFalse(name.isSimilar(new Name("johnksmith")));
+        } catch (IllegalValueException e) {
+            e.printStackTrace();
+        }
+    }
+
+}