diff --git a/.idea/misc.xml b/.idea/misc.xml
index d15472f..03f397c 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" version="2" languageLevel="JDK_18" default="true" project-jdk-name="openjdk-18" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="19" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/src/com/example/practice/CompoundAssignment.java b/src/com/example/practice/CompoundAssignment.java
index f5bbb15..6f2c477 100644
--- a/src/com/example/practice/CompoundAssignment.java
+++ b/src/com/example/practice/CompoundAssignment.java
@@ -18,17 +18,16 @@ public static void main(String[] args) {
 
             the final result should be a variable that holds the original value of 1
          */
-
-
-
-
-
-
-
-
-
-
-
-
+        int num = 1;
+        num += 3;
+        System.out.println(num);
+        num *= 4;
+        System.out.println(num);
+        num -= 8;
+        System.out.println(num);
+        num /= 2;
+        System.out.println(num);
+        num %= 3;
+        System.out.println(num);
     }
 }
diff --git a/src/com/example/practice/IncAndDec.java b/src/com/example/practice/IncAndDec.java
index ba53284..8992ec0 100644
--- a/src/com/example/practice/IncAndDec.java
+++ b/src/com/example/practice/IncAndDec.java
@@ -16,16 +16,13 @@ public static void main(String[] args) {
 
             4. Then repeat step 3 with the decrement operator
             (make sure to adjust the string output appropriately)
-
-
          */
-
-
-
-
-
-
-
+        int num = 10;
+        System.out.println("Initial value: " + num); // 10
+        num++;
+        System.out.println("Value after increment: " + num); // 11
+        num--;
+        System.out.println("Value after decrement: " + num); // 10
 
         /*
             Now, using System.out.println(), print the value of your variable as you increment it
@@ -33,7 +30,7 @@ public static void main(String[] args) {
             or if the returned value is not yet incremented
          */
 
-
+        System.out.println(num++); // Not yet incremented
 
 
     }
diff --git a/src/com/example/practice/MathOps.java b/src/com/example/practice/MathOps.java
index f317a2d..a33f041 100644
--- a/src/com/example/practice/MathOps.java
+++ b/src/com/example/practice/MathOps.java
@@ -14,17 +14,12 @@ public static void main(String[] args) {
             print out the values resulting from performing each of the five basic math operations on them
             (+, -, *, /, %)
          */
-
-
-
-
-
-
-
-
-
-
-
-
+        int num1 = 10;
+        int num2 = 2;
+        System.out.println(num1 + num2); // 12
+        System.out.println(num1 - num2); // 8
+        System.out.println(num1 * num2); // 20
+        System.out.println(num1 / num2); // 5
+        System.out.println(num1 % num2); // 0
     }
 }
diff --git a/src/com/example/practice/Sout.java b/src/com/example/practice/Sout.java
index fb3263b..f245b63 100644
--- a/src/com/example/practice/Sout.java
+++ b/src/com/example/practice/Sout.java
@@ -14,27 +14,24 @@ public static void main(String[] args) {
         System.out.println("Hello, world!");
         // declare and define a variable of each of the 8 primitive data types in Java
         // (byte, short, int, long, float, double, boolean, char)
-
-
-
-
-
-
-
-
+        byte b = 100;
+        short s = 10000;
+        int i = 100000;
+        long creditCardNumber = 1234_5678_9012_3456L;
+        float pi = 3.14_15F;
+        double d = 123.4;
+        boolean boo = true;
+        char c = 'A';
 
         // use System.out.println() to display the values of each variable to the system
-
-
-
-
-
-
-
-
-
-
-
+        System.out.println(b); // 100
+        System.out.println(s); // 10000
+        System.out.println(i); // 100000
+        System.out.println(creditCardNumber); // 1234_5678_9012_3456L
+        System.out.println(pi); // 3.14_15F
+        System.out.println(d); // 123.4
+        System.out.println(boo); // true
+        System.out.println(c); // A
 
     }
 }