Employee.java

public class Employee implements Comparable<Employee> {
    int emp_id, age;
    String name, dept, location;

    public Employee(String name, int age, String dept, String location) {
        this.name = name;
        this.age = age;
        this.dept = dept;
        this.location = location;
    }

    public Employee(int emp_id, String name, int age, String dept, String location) {
        this.emp_id = emp_id;
        this.name = name;
        this.age = age;
        this.dept = dept;
        this.location = location;
    }

    @Override
    public int compareTo(Employee e) {
        return this.name.compareToIgnoreCase(e.name);
    }

    @Override
    public String toString() {
        return "id:" + this.emp_id + " name:" + this.name + " age:" + this.age +
                " dept:" + this.dept + " location:" + this.location;
    }
}