diff --git a/ch04/HelloMethod.java b/ch04/HelloMethod.java
new file mode 100644
index 0000000..e5b2568
--- /dev/null
+++ b/ch04/HelloMethod.java
@@ -0,0 +1,41 @@
+public class HelloMethod
+{
+    public static void main(String[] args)
+    {
+        String firstName = "Fred";
+        String secondName = "Wilma";
+        String lastName = "Flintstone";
+
+        printHelloWorld(firstName, lastName);
+        printHelloWorld(secondName, lastName);
+
+        int firstNum = 5;
+        int secondNum = 10;
+        printOhNo(firstName, firstNum, secondNum, false);
+
+        printNumberNoSign(5);
+        printNumberNoSign(-5);
+    }
+
+    public static void printNumberNoSign(int number)
+    {
+        int positiveNumber = Math.abs(number);
+        System.out.println("The number is " + positiveNumber);
+    }
+
+    public static void printHelloWorld(String fName, String lName)
+    {
+        System.out.println("Hello World " + fName + " " + lName);
+    }
+
+    public static void printOhNo(String cat, int firstNumber, int secondNumber, boolean isAPerson)
+    {
+        System.out.println("OH NO!!!!!!!!!!!!!!!!!!!!!!! " + cat);
+        System.out.println("Is a person? " + isAPerson);
+        System.out.println("First Number is " + firstNumber);
+        System.out.println("Second Number is " + secondNumber);
+        System.out.println("total is " + (firstNumber + secondNumber));
+    }
+
+
+}
\ No newline at end of file
diff --git a/ch05/.idea/misc.xml b/ch05/.idea/misc.xml
new file mode 100644
index 0000000..e208459
--- /dev/null
+++ b/ch05/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/ch05/.idea/modules.xml b/ch05/.idea/modules.xml
new file mode 100644
index 0000000..8aa42e1
--- /dev/null
+++ b/ch05/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/ch05.iml" filepath="$PROJECT_DIR$/ch05.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/ch05/.idea/vcs.xml b/ch05/.idea/vcs.xml
new file mode 100644
index 0000000..6c0b863
--- /dev/null
+++ b/ch05/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/ch05/Comparison.java b/ch05/Comparison.java
new file mode 100644
index 0000000..bcf12d7
--- /dev/null
+++ b/ch05/Comparison.java
@@ -0,0 +1,18 @@
+public class Comparison
+{
+    public static void main(String[] args)
+    {
+        String txt = "Fantastic";
+        String lang = "Java";
+        boolean state = (txt ==lang);
+        System.out.println("String Equality Test:" + state);
+        state = (txt != lang);
+        System.out.println("String Inequality Test" + state);
+        int dozen = 12;
+        int score = 20;
+        state = (dozen > score);
+        System.out.println("Greater Than Test:" + state);
+        state = (dozen < score);
+        System.out.println("Less Than Test" + state);
+    }
+}
diff --git a/ch05/ch05.iml b/ch05/ch05.iml
new file mode 100644
index 0000000..b107a2d
--- /dev/null
+++ b/ch05/ch05.iml
@@ -0,0 +1,11 @@
+<?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://$MODULE_DIR$" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file