diff --git a/OOP/Java/Lab/Week4/PrimeArray.java b/OOP/Java/Lab/Week4/PrimeArray.java
new file mode 100644
index 0000000..a931541
--- /dev/null
+++ b/OOP/Java/Lab/Week4/PrimeArray.java
@@ -0,0 +1,34 @@
+import java.util.Scanner;
+
+class PrimeArray {
+
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        System.out.print("Enter the size of the array: ");
+        int size = sc.nextInt();
+
+        int[] arr = new int[size];
+        System.out.println("Enter " + size + " integers:");
+        for (int i = 0; i < size; i++) {
+            arr[i] = sc.nextInt();
+        }
+
+        System.out.print("Prime numbers in the array: ");
+        for (int num : arr) {
+            if (num > 1) {
+                boolean isPrime = true;
+                for (int j = 2; j <= Math.sqrt(num); j++) {
+                    if (num % j == 0) {
+                        isPrime = false;
+                        break;
+                    }
+                }
+                if (isPrime) {
+                    System.out.print(num + " ");
+                }
+            }
+        }
+
+        sc.close();
+    }
+}