Copy and paste this java code into the the JustJava app's MainActivity.java file

MainActivity.java

// Add your package below
/* package com.example.android.justjava; */

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;

/**
 * This app displays an order form to order coffee.
 */
public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    /**
     * This method is called when the order button is clicked.
     */
    public void submitOrder(View view) {
        display(1);
    }

    /**
     * This method displays the given quantity value on the screen.
     */
    private void display(int number) {
        TextView quantityTextView = (TextView) findViewById(R.id.quantity_text_view);
        quantityTextView.setText("" + number);
    }
}

@udacityandroid PLease update the errors in the Course ,it is too much time consuming ! OR don't mention that this course is free, it is just waste of time !

• If you get an error when copying this code into Android studio, update it to match teh package name found in the project's AndroidManifest.xml file.>>>>Its important step
• then in java >>import android.support.v7.app.AppCompatActivity;<< this import line of code has been updated to another one ,
• so delete this.& drag your mouse to AppCompatActivity text of this line of code. >>public class MainActivity extends ### AppCompatActivity
• now press alt+enter
• and select import.
• the issue will be fixed& error will be gone.
• `/**
• IMPORTANT: Make sure you are using the correct package name.
• This example uses the package name:
• package com.example.android.justjava
• If you get an error when copying this code into Android studio, update it to match teh package name found
• in the project's AndroidManifest.xml file.
  **/

package com.example.justjava;
import android.os.Bundle;
//import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

/**

• This app displays an order form to order coffee.
  */
  public class MainActivity extends AppCompatActivity {

  @OverRide
  protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  }

  /**

  • This method is called when the order button is clicked.
    */
    public void submitOrder(View view) {
    display(1);
    }

  /**

  • This method displays the given quantity value on the screen.
    */
    private void display(int number) {
    TextView quantityTextView = (TextView) findViewById(R.id.quantity_text_view);
    quantityTextView.setText("" + number);
    }
    }`

more than 7 hours and i cannot solve this errors its really Get me tired

how can i solve them any help

where are they

more than 7 hours and i cannot solve this errors its really Get me tired

I had the same error. I replaced the line of code, 'import android.support.v7.app.AppCompatActivity;' in line 4 or 5 with 'import androidx.appcompat.app.AppCompatActivity'. All the 6 errors i had eventually vanished including the one about "Cannot resolve v7". i'm still not totally certain that the changes are executable but it is worth a try!!

thankyou,
works wor me

This was what worked for me;

1. under "activity_main.xml"
   Add
   android:id="@+id/quantity_text_view" to TextView 0

2. Ensure that the package name in "AndroidManifestxml" is the same with "MainActivity.java

3. Under MainAcitivity.java, change "import android.support.v7.app.AppCompatActivity;" to
"import android.appcompat.app.AppCompatActivity;"

thanksss, works

I tried correcting the code using previous comments but nothing worked for me. please help

I tried correcting the code using previous comments but nothing worked for me. please help

can't resolve activity_main
help