diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..3b408a3
--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,18 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="InfiniteRecursion" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="unused" enabled="false" level="WARNING" enabled_by_default="false" checkParameterExcludingHierarchy="false">
+      <option name="LOCAL_VARIABLE" value="true" />
+      <option name="FIELD" value="true" />
+      <option name="METHOD" value="true" />
+      <option name="CLASS" value="true" />
+      <option name="PARAMETER" value="true" />
+      <option name="REPORT_PARAMETER_FOR_PUBLIC_METHODS" value="true" />
+      <option name="ADD_MAINS_TO_ENTRIES" value="true" />
+      <option name="ADD_APPLET_TO_ENTRIES" value="true" />
+      <option name="ADD_SERVLET_TO_ENTRIES" value="true" />
+      <option name="ADD_NONJAVA_TO_ENTRIES" value="true" />
+    </inspection_tool>
+  </profile>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 639900d..73996db 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" project-jdk-name="openjdk-21 (3)" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Java-Assignment-004.iml b/Java-Assignment-004.iml
index b46c0dd..8ad7c06 100644
--- a/Java-Assignment-004.iml
+++ b/Java-Assignment-004.iml
@@ -5,6 +5,7 @@
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
     </content>
+    <orderEntry type="jdk" jdkName="openjdk-20" jdkType="JavaSDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>
\ No newline at end of file
diff --git a/src/Multadd.java b/src/Multadd.java
new file mode 100644
index 0000000..496fd04
--- /dev/null
+++ b/src/Multadd.java
@@ -0,0 +1,40 @@
+
+public class Multadd {
+
+    public static void multadd(double a, double b, double c) {
+        double result = a*b + c;
+        System.out.println (result);
+    }
+
+    public static void main(String[] args) {
+
+        System.out.print ("The result of 1.0, 2.0, and 3.0 is: ");
+        multadd(1.0, 2.0, 3.0);
+        System.out.println();
+
+        double a1 = Math.cos(Math.PI/4.0);
+        double b1 = 1.0/2.0;
+        double c1 = Math.sin(Math.PI/4.0);
+        System.out.print ("sin(pi/4) + cos(pi/4)/2 = ");
+        multadd (a1, b1, c1);
+        System.out.println();
+
+        double a2 = 1.0;
+        double b2 = Math.log(10);
+        double c2 = Math.log(20);
+        System.out.print("log(10) + log(20) = ");
+        multadd(a2, b2, c2);
+        System.out.println();
+    }
+
+    public static void expSum(double x) {
+
+        //
+        double a = x;
+        double b = Math.exp(-x);
+        double c = Math.sqrt(1.0 - b);
+        multadd(a, b, c);
+        System.out.print("xe^(-x) + sqrt (1 - e^(-x) = ");
+        System.out.println();
+    }
+}
\ No newline at end of file