Added Java lab programs

UniversityEnrollment.java

@@ -0,0 +1,65 @@
+import java.util.Scanner;
+
+class Student {
+
+    private int m1, m2, m3;
+
+    // Static counter to track enrolled students
+    static int studentCount = 0;
+
+    // Static block to display welcome message
+    static {
+        System.out.println("Welcome to University Enrollment System");
+    }
+
+    // Constructor
+    Student(int m1, int m2, int m3) {
+        this.m1 = m1;
+        this.m2 = m2;
+        this.m3 = m3;
+        studentCount++;
+    }
+
+    // Non-static method to compute average of best two marks
+    void displayAverage() {
+        int bestTwoSum = m1 + m2 + m3 - Math.min(m1, Math.min(m2, m3));
+        double average = bestTwoSum / 2.0;
+        System.out.println("Average of best two marks: " + average);
+    }
+
+    // Static method to display total enrolled students
+    static void displayTotalStudents() {
+        System.out.println("Total students enrolled: " + studentCount);
+    }
+}
+
+public class UniversityEnrollment {
+
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+
+        System.out.print("Enter number of students to enroll: ");
+        int n = sc.nextInt();
+
+        for (int i = 1; i <= n; i++) {
+            System.out.println("\nEnter marks for Student " + i);
+
+            System.out.print("Mark 1: ");
+            int m1 = sc.nextInt();
+
+            System.out.print("Mark 2: ");
+            int m2 = sc.nextInt();
+
+            System.out.print("Mark 3: ");
+            int m3 = sc.nextInt();
+
+            Student s = new Student(m1, m2, m3);
+            s.displayAverage();
+        }
+
+        // Display total enrolled students
+        Student.displayTotalStudents();
+
+        sc.close();
+    }
+}