diff --git a/simple/java/collapse-hiearchy-after.java b/simple/java/collapse-hiearchy-after.java
new file mode 100644
index 0000000..fef9eb7
--- /dev/null
+++ b/simple/java/collapse-hiearchy-after.java
@@ -0,0 +1,7 @@
+public class Website
+{
+    public string Title { get; set; }
+    public string Description { get; set; }
+    public IEnumerable<Webpage> Pages { get; set; }
+    public bool IsActive { get; set; }
+}
\ No newline at end of file
diff --git a/simple/java/collapse-hierarchy-before.java b/simple/java/collapse-hierarchy-before.java
new file mode 100644
index 0000000..7cb7f22
--- /dev/null
+++ b/simple/java/collapse-hierarchy-before.java
@@ -0,0 +1,11 @@
+public class Website
+{
+    public string Title { get; set; }
+    public string Description { get; set; }
+    public IEnumerable<Webpage> Pages { get; set; }
+}
+
+public class StudentWebsite : Website
+{
+    public bool IsActive { get; set; }
+}
\ No newline at end of file
diff --git a/simple/java/dead-code-after.java b/simple/java/dead-code-after.java
new file mode 100644
index 0000000..1b64cdd
--- /dev/null
+++ b/simple/java/dead-code-after.java
@@ -0,0 +1,8 @@
+int testFunction() {
+    // ...
+    if (a) {
+        return a;
+    }
+    b++;
+    return b; 
+}
\ No newline at end of file
diff --git a/simple/java/dead-code-before.java b/simple/java/dead-code-before.java
new file mode 100644
index 0000000..f132ea6
--- /dev/null
+++ b/simple/java/dead-code-before.java
@@ -0,0 +1,10 @@
+int testFunction() {
+    // ...
+    if (a) {
+        return a;
+    }
+    else {
+        b++;
+        return b;
+    }
+}
\ No newline at end of file
diff --git a/simple/php/primitive-obsession-after.php b/simple/php/primitive-obsession-after.php
new file mode 100644
index 0000000..aa1a8ce
--- /dev/null
+++ b/simple/php/primitive-obsession-after.php
@@ -0,0 +1,25 @@
+<?php
+class contactUs {  
+  private $streetNum;
+  private $streetName;
+  private $zipCode;
+
+  public function addressCountryA() {
+    $address = new Array();
+    $this->streetNum = 10;
+    $this->streetName = 'Oregon St';
+    $this->zipCode = '7726128';
+
+    return $this->streetName.' '.$this->streetNum.','.$this->zipCode;
+  }
+
+  public function addressCountryB() {
+    $address = new Array();
+    $this->streetNum = 22;
+    $this->streetName = 'Berlin St';
+    $this->zipCode = '882719';
+
+    return $this->streetName.' '.$this->streetNum.','.$this->zipCode;
+  }
+  // ...
+}
diff --git a/simple/php/primitive-obsession-before.php b/simple/php/primitive-obsession-before.php
new file mode 100644
index 0000000..a0089a2
--- /dev/null
+++ b/simple/php/primitive-obsession-before.php
@@ -0,0 +1,21 @@
+<?php
+class contactUs {  
+  public function addressCountryA() {
+    $address = new Array();
+    $address['streetNum'] = 10;
+    $address['streetName'] = 'Oregon St';
+    $address['zipCode'] = '7726128';
+
+    return $address['streetName'].' '.$address['streetNum'].','.$address['zipCode'];
+  }
+
+  public function addressCountryB() {
+    $address = new Array();
+    $address['streetNum'] = 22;
+    $address['streetName'] = 'Berlin St';
+    $address['zipCode'] = '882719';
+
+    return $address['streetName'].' '.$address['streetNum'].','.$address['zipCode'];
+  }
+  // ...
+}