Is it possible to only check the first four letters of a string during: input.equals("USER test"); JAVA POP3

Question

I'm trying to make a mail system with POP3 commands using java.

When a user logs in, they enter "USER" followed by their username e.g "USER ben"

in order to send them along their way I was wondering if here:

import java.util.Scanner;

public class TestingPart1 {

    public static void main(String[]args){
        int on = 1;
        while (on == 1){
        System.out.println("+OK POP3 server ready");

        Scanner answer = new Scanner(System.in);
        String Input = answer.nextLine();

    **if (Input.equals.("USER test")){
        CommandInterpreter.handleUser(Input);
        }**

I would be able to only check the first four characters USER so that when it gets passed through to CommandInterpreter it still reads USER test, but passes this stage

thanks :)

Answer 1

if (Input.startsWith("USER ")) { ...

Answer 2

You can use a split with a space into a string array. Then evaluate whether the first element of the array is equal to "USER"

Input is unchanged by the split operation.