ADD file via upload

EmployeeSearch.java

@@ -0,0 +1,26 @@
+import java.util.ArrayList;
+import java.util.List;
+
+public class EmployeeSearch {
+
+    public List<Employee> findByDepartment(List<Employee> employees, String department) {
+        // Department field not defined in Employee; returning empty for now.
+        return new ArrayList<>();
+    }
+
+    public List<Employee> findByHireDateRange(List<Employee> employees, String startDate, String endDate) {
+        // Hire date field not defined in Employee; returning empty for now.
+        return new ArrayList<>();
+    }
+
+    public List<Employee> findBySalaryRange(List<Employee> employees, int minSalary, int maxSalary) {
+        List<Employee> result = new ArrayList<>();
+        for (Employee e : employees) {
+            int sal = e.getSalary();
+            if (sal >= minSalary && sal <= maxSalary) {
+                result.add(e);
+            }
+        }
+        return result;
+    }
+}