Hello I am having errors with my android studio code.It is a gps code. It is using api $27$ and it has a lot of underline erros and I will leave the code down below and give you a screenshot of how it looks like. Can you please help this code be able to run?

code:

package com.example.mygps;

import android.content.Intent;

import android.os$.$Bundle;

import android.view.View;

import android.widget.EditText;

import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import androidx.core.graphics.Insets;

import androidx.core.view.ViewCompat;

import androidx.core.view.WindowInsetsCompat;

public class MainActivity extends AppCompatActivity $\{$

@Override

protected void onCreate$($Bundle savedInstanceState$)\{$

super.onCreate$($savedInstanceState$)$;

setContentView$($R$.$layout.activity$\_$main$)$;

$//$ Setup window insets

ViewCompat.setOnApplyWindowInsetsListener$($findViewById$($R$.$id$.$main$),$

$($v$,$ insets$)->\{$

Insets systemBars $=$ insets.getInsets$($WindowInsetsCompat$.$Type.systemBars$())$;

v$.$setPadding$($systemBars$.$left, systemBars.top, systemBars.right, systemBars.bottom$)$;

return insets;

$\})$;

$//$ onClickListener for Button Click

findViewById$($R$.$id$.$addLocationButton$).$setOnClickListener$($view $->\{$

Intent intent $=$ new Intent$($MainActivity$.$this, AddLocationActivity.class$)$;

startActivity$($intent$)$;

$\})$;

$\}$

$\}$

class Location $\{$

private String name;

private String country;

private String gpsCoordinates;

private String visitDate;

private int rating;

$//$ Constructor

public Location$($String name, String country, String gpsCoordinates, String visitDate, int rating$)\{$

this.name $=$ name;

this.country $=$ country;

this.gpsCoordinates $=$ gpsCoordinates;

this.visitDate $=$ visitDate;

this.rating $=$ rating;

$\}$

$//$ Getters and setters

public String getName$()\{$

return name;

$\}$

public String getCountry$()\{$

return country;

$\}$

public String getGpsCoordinates$()\{$

return gpsCoordinates;

$\}$

public String getVisitDate$()\{$

return visitDate;

$\}$

public int getRating$()\{$

return rating;

$\}$

$\}$

public class AddLocationActivity extends AppCompatActivity $\{$

private EditText editTextName, editTextCountry, editTextGPS, editTextDate;

private NumberPicker ratingPicker;

@Override

protected void onCreate$($Bundle savedInstanceState$)\{$

super.onCreate$($savedInstanceState$)$;

setContentView$($R$.$layout.activity$\_$add$\_$location$)$;

$//$ Initialize views

editTextName $=$ findViewById$($R$.$id$.$editTextName$)$;

editTextCountry $=$ findViewById$($R$.$id$.$editTextCountry$)$;

editTextGPS $=$ findViewById$($R$.$id$.$editTextGPS$)$;

editTextDate $=$ findViewById$($R$.$id$.$editTextDate$)$;

ratingPicker $=$ findViewById$($R$.$id$.$ratingPicker$)$;

$//$ Configure NumberPicker

ratingPicker.setMinValue$(1)$;

ratingPicker.setMaxValue$(5)$;

$//$ Set up save button

findViewById$($R$.$id$.$saveButton$).$setOnClickListener$($view $->\{$

String name $=$ editTextName.getText$().$toString$()$;

String country $=$ editTextCountry.getText$().$toString$()$;

String gps $=$ editTextGPS.getText$().$toString$()$;

String date $=$ editTextDate.getText$().$toString$()$;

int rating $=$ ratingPicker.getValue$()$;

$//$ Display a Toast message for now

Toast.makeText$($this$,$ "Location saved: $"+$ name, Toast.LENGTH$\_$SHORT$).$show$()$;

$\})$;

$\}$

$\}$