diff --git a/src/Example20.java b/src/Example20.java
new file mode 100644
index 0000000..e154f06
--- /dev/null
+++ b/src/Example20.java
@@ -0,0 +1,11 @@
+public class Example20 {
+    public static void main(String[] args) {
+        int area = getArea(3, 5);
+        System.out.println("The area is " + area);
+    }
+
+    public static int getArea(int x, int y) {
+        int temp = x * y;
+        return temp;
+    }
+}
diff --git a/src/Example21.java b/src/Example21.java
new file mode 100644
index 0000000..9fe8c89
--- /dev/null
+++ b/src/Example21.java
@@ -0,0 +1,2 @@
+package PACKAGE_NAME;public class Example21 {
+}