Java Program to show even/odd numbers between starting point to ending point

import java.io.*;
import java.util.*;
public class First_Even_Odd{
    Scanner scan=new Scanner(System.in);
    int i, starts, ends;
    String choice;
    public void input(){
        try{
            System.out.println("Enter \"Even\" to print even numbers between beg - last or \"Odd\" for odd numbers.");
            choice=scan.next();
        }
        catch(Exception e){
            System.out.println("Error Code: "+e);
            System.exit(0);
        }
        try{
            System.out.println("Enter starting number:- ");
            starts=scan.nextInt();
            System.out.println("Enter ending number:- ");
            ends=scan.nextInt();
        }
        catch(NumberFormatException e){
            System.out.println("Error Code: "+e);
            System.exit(0);
        }
    }

    public void compute(){
        if(choice.equalsIgnoreCase("even"))
            even();
        else if(choice.equalsIgnoreCase("odd"))
            odd();
        else
            exit();
    }

    public void even(){
        System.out.println("\nEven numbers between "+starts+" and "+ends+" are:- ");
        for(i=starts; i<=ends; i++)
            if(i%2==0)
                System.out.println(i);
    }

    public void odd(){
        System.out.println("\nOdd numbers between "+starts+" and "+ends+" are:- ");
        for(i=starts; i<=ends; i++)
            if(i%2!=0)
                System.out.println(i);
    }

    public void exit(){
        System.out.println("Wrong Choice entered by you i.e. \""+choice+"\"");
    }

    public static void main(String[] args){
        First_Even_Odd obj=new First_Even_Odd();
        obj.input();
        obj.compute();
    }
}