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+            <element signature="e#653#654#0" expanded="true" />
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+            <element signature="e#615#616#0" expanded="true" />
+            <element signature="e#642#643#0" expanded="true" />
+            <element signature="e#745#746#0" expanded="true" />
+            <element signature="e#773#774#0" expanded="true" />
+            <element signature="e#909#910#0" expanded="true" />
+            <element signature="e#937#938#0" expanded="true" />
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+            <element signature="e#920#921#0" expanded="true" />
+            <element signature="e#1050#1051#0" expanded="true" />
+            <element signature="e#1085#1086#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/src/PersonsTest.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="345">
+          <caret line="28" selection-start-line="28" selection-end-line="28" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/src/Persons.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="464">
+          <caret line="33" column="9" lean-forward="true" selection-start-line="33" selection-start-column="9" selection-end-line="33" selection-end-column="9" />
+          <folding>
+            <element signature="imports" expanded="true" />
+            <element signature="e#95#96#0" expanded="true" />
+            <element signature="e#120#121#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+  </component>
+  <component name="masterDetails">
+    <states>
+      <state key="ArtifactsStructureConfigurable.UI">
+        <settings>
+          <artifact-editor />
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+      <state key="FacetStructureConfigurable.UI">
+        <settings>
+          <last-edited>No facets are configured</last-edited>
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+      <state key="GlobalLibrariesConfigurable.UI">
+        <settings>
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+      <state key="JdkListConfigurable.UI">
+        <settings>
+          <last-edited>1.8</last-edited>
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+      <state key="ModuleStructureConfigurable.UI">
+        <settings>
+          <last-edited>ZCW-Lambdas</last-edited>
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+                <option value="0.6" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+      <state key="ProjectJDKs.UI">
+        <settings>
+          <last-edited>1.8</last-edited>
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+      <state key="ProjectLibrariesConfigurable.UI">
+        <settings>
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+    </states>
+  </component>
+</project>

src/src.iml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="jdk" jdkName="1.8" jdkType="JavaSDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module-library">
+      <library name="JUnit4">
+        <CLASSES>
+          <root url="jar://$APPLICATION_HOME_DIR$/lib/junit-4.12.jar!/" />
+          <root url="jar://$APPLICATION_HOME_DIR$/lib/hamcrest-core-1.3.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+  </component>
+</module>

src/src/CheckPerson.java

@@ -0,0 +1,4 @@
+public interface CheckPerson {
+
+    boolean test(Person p);
+}

src/src/Person.java

@@ -0,0 +1,67 @@
+import com.sun.tools.javac.comp.Check;
+
+import java.time.LocalDate;
+import java.util.List;
+
+public class Person implements CheckPerson {
+
+
+
+    @Override
+    public boolean test(Person p) {
+        return false;
+    }
+
+    public enum Sex
+    {MALE, FEMALE}
+
+    String name;
+    LocalDate birthday;
+    Sex gender;
+    String emailAddress;
+
+    public Person(String name, Sex gender, LocalDate birthday, String emailAddress){
+        this.name=name;
+        this.gender = gender;
+        this.birthday = birthday;
+        this.emailAddress = emailAddress;
+    }
+    public Person(){
+
+    }
+    public Person(String name) {
+        this.name = name;
+    }
+
+
+    public int getAge() {
+        return LocalDate.now().getYear() - birthday.getYear();
+    }
+
+    public String getName(){
+        return name;
+    }
+
+    public Sex getGender(){
+        return gender;
+    }
+    public void setGender(Sex gender){
+        this.gender = gender;
+    }
+
+    public LocalDate getBirthday() {
+        return birthday;
+    }
+
+    public String getEmailAddress() {
+        return emailAddress;
+    }
+
+
+    public void printPerson() {
+
+        System.out.println(this.name + " " + this.emailAddress);
+
+    }
+
+}

src/src/PersonTest.java

@@ -0,0 +1,67 @@
+import org.junit.Test;
+
+import java.time.LocalDate;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+import java.util.ListIterator;
+
+import static org.junit.Assert.*;
+
+public class PersonTest {
+    LocalDate bday = LocalDate.of(1995,8,8);
+    Person p = new Person("shiva", Person.Sex.MALE, bday, "shiv@temple.edu");
+    List<Person> list;
+    @org.junit.Test
+    public void getAge() {
+        int expected = 23;
+        int actual = p.getAge();
+        assertEquals(expected,actual);
+    }
+
+    @org.junit.Test
+    public void getName() {
+        String expected = "shiva";
+        String actual = p.getName();
+        assertEquals(expected,actual);
+    }
+
+    @org.junit.Test
+    public void getGender() {
+        Person.Sex expected = Person.Sex.MALE;
+        Person.Sex actual = p.getGender();
+        assertEquals(expected,actual);
+    }
+
+    @org.junit.Test
+    public void getBirthday() {
+        LocalDate expected = bday;
+        LocalDate actual = p.getBirthday();
+        assertEquals(expected,actual);
+
+    }
+
+    @org.junit.Test
+    public void getEmailAddress() {
+        String expected = "shiv@temple.edu";
+        String actual = p.getEmailAddress();
+        assertEquals(expected,actual);
+    }
+
+    @org.junit.Test
+    public void printPerson() {
+        String expected = "shiva shiv@temple.edu";
+        String actual = p.getName() + " " + p.getEmailAddress();
+        assertEquals(expected,actual);
+
+    }
+
+    @Test
+    public void printPersons() {
+       Person p1 = new Person("shiv", Person.Sex.MALE, bday, "shiv@temple.edu");
+       Person P2 = new Person("bob", Person.Sex.MALE, bday, "bob@temple.edu");
+       list.add(p1);
+       list.add(P2);
+
+    }
+}

src/src/Persons.java

@@ -0,0 +1,39 @@
+import java.util.ArrayList;
+import java.util.List;
+
+public class Persons {
+    List<Person> list;
+
+    public Persons(){
+        list = new ArrayList<>();
+    }
+    public void add(Person p){
+        this.list.add(p);
+
+    }
+
+    public static void printPersons(List<Person> roster, CheckPerson tester){
+        roster.forEach(p -> {
+            if(tester.test(p)){
+                p.printPerson();
+            }});
+    }
+
+    CheckPerson age = p -> (18 <= p.getAge() && 60 > p.getAge());
+
+
+
+    class personAnon{
+
+        public void printPersonsOlderThan(List<Person> roster, int age) {
+            for (Person p : roster) {
+                if (p.getAge() >= age) {
+                    p.printPerson();
+                }
+            }
+        }
+
+    }
+
+
+}

src/src/PersonsTest.java

@@ -0,0 +1,30 @@
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.time.LocalDate;
+
+import static org.junit.Assert.*;
+
+public class PersonsTest {
+
+
+    LocalDate bday = LocalDate.of(1945,8,8);
+    Person p = new Person("shiva", Person.Sex.MALE, bday, "shiv@temple.edu");
+    Persons ps = new Persons();
+    @Test
+    public void printPersons() {
+        assertTrue(ps.age.test(p));
+
+    }
+
+    @Test
+    public void lambda(){
+        Person b = new Person("shiva");
+        b.setGender(Person.Sex.MALE);
+        ps.add(b);
+        assertTrue(ps.list.contains(b));
+
+
+    }
+
+}