Java Program to split the entered name into three parts i.e. First, Middle and Last

import java.io.*;
import java.util.*;
public class Name4{
    Scanner scan=new Scanner(System.in);
    String name;
    int first, lastIndex;
    public void input(){
        try{
            System.out.println("Enter your Name: ");
            name=scan.nextLine();
        }
        catch(Exception e){
            System.out.println("Error Code: "+e);
            System.exit(0);
        }
    }

    public void compute(){
        first=name.indexOf(' ');
        lastIndex=name.lastIndexOf(' ');
        System.out.print("\nFirst Name: ");
        for(int i=0; i<first; i++)
            System.out.print(name.charAt(i));
        System.out.print("\nMiddle Name: ");
        for(int i=first+1; i<lastIndex; i++)
            System.out.print(name.charAt(i));
        System.out.print("\nLast Name: ");
        for(int i=lastIndex+1; i<name.length(); i++)
            System.out.print(name.charAt(i));
        if(name.lastIndexOf(' ')<=first)
            System.out.print("\nMiddle Name not exists in \""+name+"\"!");
    }

    public static void main(String[] args){
        Name4 obj=new Name4();
        obj.input();
        obj.compute();
    }
}