Query on comapareTo method

[TAM]

Following is the program to sort the employees on the Name basis

import java.util.*;

class EmployeeSortTest
{
public static void main ( String[] tam )
{
// Array of Employees
Employee[] a = new Employee[3];

a[0] = new Employee("Tam",350000);
a[1] = new Employee("Dravid",500000);
a[2] = new Employee("Sachin",700000);

// Sorting the Employees with name basis using Arrays utility class
Arrays.sort(a);

for( Employee x : a)
System.out.println(" Name = " + x.getName() +
"Salary = " + x.getSalary());
}
}

class Employee implements Comparable
{
public Employee(String n, double s )
{
name = n;
salary = s;
}

public int compareTo(Employee other)
{
return name.compareTo(other.name);
}
public String getName()
{
return name;
}
public double getSalary()
{
return salary;
}
private double salary;
private String name;
}

My problem is I also want to sort the Employees on the Salary basis without modifying this existing code.
i.e to have an another version of compareTo() method in this class that implements Comparable interface
which sort on salary basis
public int compareTo(Employee other)
{
if ( salary > other.salary) return 1;
if ( salary < other.salary) retrurn -1;
return 0;
}
But compiler reports that compareTo() is already defined in Employee

Pls give solution to this

[t_mohan]

Here you are breaking the rule of overriding, since how to override the method with same signature in the same class itself, or else what u have to do is create a subclass and in the subclass try to override the compareTo Method, then it will work

I hope im clear, if u didnot understand feel free to ask me

Let me know your questions

Thank You

[TAM]

Could u pls give the code
actually by making a subclass how it works!!!!