diff --git a/.idea/misc.xml b/.idea/misc.xml
index 639900d..172df7b 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" default="true" project-jdk-name="openjdk-19" 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..e1006ff 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="inheritedJdk" />
     <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..61f0d7b
--- /dev/null
+++ b/src/multadd.java
@@ -0,0 +1,18 @@
+public class multadd {
+
+    public static double expSum(double x) {
+        return multadd(x*Math.exp(-x),Math.sqrt(1 - Math.exp(-x)),1.0);
+    }
+
+    public static double multadd(double a, double b, double c) {
+        return a + b * c;
+    }
+
+    public static void main(String[] args) {
+        System.out.println(multadd(1.0,2.0,3.0));
+        System.out.println(multadd(Math.sin(Math.PI/4),(Math.cos(Math.PI/4.0))/2.0, 1.0));
+        System.out.println(multadd(Math.log(10.0),Math.log(20.0),1.0));
+
+        System.out.println(expSum(1.0));
+    }
+}