Write a program to sort object using comparable ?

Check this one also
Sort employee object in descending order
Here I am taking class Employee:

package com.instanceofjava;

import java.util.Comparable;
public class Employee implements Comparable<Employee> {
 int id;
 String name;
 public Employee(int id, String name) {
  this.id=id;
  this.name=name;
 }
  public int getId() {
  return id;
 }
 public void setId(int id) {
  this.id = id;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 @Override
 public int compareTo(Employee e) {
 Integer i= this.getId();
 Integer j=e.getId();
     if (this.getId() == e.getId())
       return 0;
      if (this.getId() < e.getId())
        return 1;
      if (this.getId() > e.getId())
       return -1;
      return 0;
 }

}

Here I am taking another class Main.Here I am adding objects to the My list

package com.oops;

import java.util.ArrayList;  

import java.util.Collections;

import java.util.Iterator;

import java.io.*;  

  

class Main{  

public static void main(String args[]){  

  

ArrayList al=new ArrayList();  

al.add(new Employee(101,"Indhu"));  

al.add(new Employee(106,"Sindhu"));  

al.add(new Employee(105,"Swathi"));  

  

Collections.sort(al);  

Iterator itr=al.iterator();  

while(itr.hasNext()){  

Employee st=(Employee)itr.next();  

System.out.println(st.id +" "+st.name );  

  }  

}  

}  

Output:

Indhu

Swathi

Sindhu

Sort employee object in descending order