Calculator

Calculator.java

@@ -0,0 +1,25 @@
+public class Computer
+{
+    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 ArithmeticException("Division by zero is not allowed.");
+        }
+        return a/b;
+    }
+}

Student.java

@@ -0,0 +1,43 @@
+public class Attendance
+{
+    private int age;
+    private String name;
+
+    public Attendance()
+    {
+        this.age=0;
+        this.name="";
+    }
+
+    public Attendance(int age, String name)
+    {
+        this.age=age;
+        this.name=name;
+    }
+
+    public int getAge()
+    {
+        return age;
+    }
+
+    public void setAge(int age)
+    {
+        this.age=age;
+    }
+
+    public String getName()
+    {
+        return name;
+    }
+
+    public void setName(String name)
+    {
+        this.name=name;
+    }
+
+    @Override
+    public String toString()
+    {
+        return "Student{name='"+name+"', age=" +age+ "}";
+    }
+}