From ac09ee62a73335cb2dadb0ad52db1cbbdfa6a33e Mon Sep 17 00:00:00 2001
From: Abir <talukdar2107049@stud.kuet.ac.bd>
Date: Thu, 21 Aug 2025 19:22:24 +0600
Subject: [PATCH 1/2] Add Student class

---
 .../com/coveros/demo/helloworld/Student.java  | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 src/main/java/com/coveros/demo/helloworld/Student.java

diff --git a/src/main/java/com/coveros/demo/helloworld/Student.java b/src/main/java/com/coveros/demo/helloworld/Student.java
new file mode 100644
index 00000000..e29161fb
--- /dev/null
+++ b/src/main/java/com/coveros/demo/helloworld/Student.java
@@ -0,0 +1,21 @@
+package com.coveros.demo.helloworld;
+public class Student{
+    private String name;
+    private int roll;
+    public Student(String name, int roll) {
+        this.name = name;
+        this.roll = roll;
+    }
+    public String getName() {
+        return name;
+    }
+    public void setName(String name) {
+        this.name = name;
+    }
+    public int getRoll() {
+        return roll;
+    }
+    public void setRoll(int roll) {
+        this.roll = roll;
+    }
+}
\ No newline at end of file

From 2cee1feecc702434dcae38f64e77b38ba72226b3 Mon Sep 17 00:00:00 2001
From: Abir <talukdar2107049@stud.kuet.ac.bd>
Date: Thu, 21 Aug 2025 19:31:40 +0600
Subject: [PATCH 2/2] Add Calculator class

---
 .../coveros/demo/helloworld/Calculator.java   | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 src/main/java/com/coveros/demo/helloworld/Calculator.java

diff --git a/src/main/java/com/coveros/demo/helloworld/Calculator.java b/src/main/java/com/coveros/demo/helloworld/Calculator.java
new file mode 100644
index 00000000..bae5ef6a
--- /dev/null
+++ b/src/main/java/com/coveros/demo/helloworld/Calculator.java
@@ -0,0 +1,21 @@
+package com.coveros.demo.helloworld;
+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) {
+        if (b == 0) {
+            throw new IllegalArgumentException("Division by zero is not allowed.");
+        }
+        return (double)a / b;
+    }
+    public int modulus(int a, int b) {
+        return a % b;
+    }
+}