Coded exp 4 3rd prob

Author: akkupy

Java_Exp_4/README.md

@@ -57,4 +57,17 @@ Department IT
 Rectangle has 4 sides.
 Triangle has 3 sides.
 Hexagon has 6 sides.
+```  
+
+[engineer_employee.java](https://github.com/akkupy/JavaS3/blob/master/Java_Exp_4/engineer_employee.java) - Write two Java classes Employee and Engineer. Engineer should inherit from Employee class. Employee class to have two methods display() and calcSalary(). Write a program to display the engineer salary and to display from Employee class using a single object instantiation (i.e., only one object creation is allowed).
+
+a. display() only prints the name of the class and does not return any value. Ex. “Name of class is Employee.”
+
+b. calcSalary() in Employee displays “Salary of employee is 10000” and calcSalary() in Engineer displays “Salary of employee is 20000.”
+
+
+```
+Name of class is Employee.
+Salary of Employee is 10000
+Salary of Engineer is 20000
 ```  

Java_Exp_4/engineer_employee.java

@@ -0,0 +1,41 @@
+class Employee
+{
+
+    void display()
+    {
+
+         System.out.println("Name of class is Employee.");
+
+    }
+
+   void calcSalary()
+    {
+
+        System.out.println("Salary of Employee is 10000");
+
+    }
+
+}
+
+class Engineer extends Employee
+{
+
+    void calcSalary()
+    {
+        super.calcSalary();
+        System.out.println("Salary of Engineer is 20000");
+
+    }
+
+}
+
+public class engineer_employee {
+    public static void main(String args[])
+    {
+
+    Engineer eng = new Engineer();
+    eng.display();
+    eng.calcSalary();
+
+    }
+}