diff --git a/src/Calculator.java b/src/Calculator.java
new file mode 100644
index 000000000000..3a2bef332e62
--- /dev/null
+++ b/src/Calculator.java
@@ -0,0 +1,8 @@
+public class Calculator {
+
+    public int add(int a, int b) { return a + b; }
+    public int subtract(int a, int b) { return a - b; }
+
+    public int multiply(int a, int b) { return a * b; }
+    public int divide(int a, int b) { return a / b; }
+}
\ No newline at end of file
diff --git a/src/Student.java b/src/Student.java
new file mode 100644
index 000000000000..b83a940d761f
--- /dev/null
+++ b/src/Student.java
@@ -0,0 +1,18 @@
+public class Student {
+    private String name;
+    private int age;
+
+    // Constructor
+    public Student(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    // Getters
+    public String getName() { return name; }
+    public int getAge() { return age; }
+
+    // Setters
+    public void setName(String name) { this.name = name; }
+    public void setAge(int age) { this.age = age; }
+}
\ No newline at end of file