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Shawn Hebert
1,137 PointsAccessing Views in Code - Output Error
I've emailed support, but they have redirected me to the forums with this problem. Can anyone please tell me what I am doing wrong here? Is it looking for the listener as well?
The question: It's asking me to initialize the getAnswerButton with the view button1.
My solution:
package com.example.crystal.ball;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Declare our view variables
TextView answerLabel = (TextView) findViewById(R.id.textView1);
Button getAnswerButton = (Button) findViewById(R.id.button1);
}
}
Error Output:
JavaTester.java:2: package android.os does not exist
import android.os.Bundle;
^
./com/example/crystal/ball/MainActivity.java:3: package android.app does not exist
import android.app.Activity;
^
./com/example/crystal/ball/MainActivity.java:4: package android.os does not exist
import android.os.Bundle;
^
./com/example/crystal/ball/MainActivity.java:5: package android.view does not exist
import android.view.View;
^
./com/example/crystal/ball/MainActivity.java:6: package android.widget does not exist
import android.widget.Button;
^
./com/example/crystal/ball/MainActivity.java:7: package android.widget does not exist
import android.widget.TextView;
^
./com/example/crystal/ball/MainActivity.java:9: cannot find symbol
symbol: class Activity
public class MainActivity extends Activity {
^
./com/example/crystal/ball/MainActivity.java:12: cannot find symbol
symbol : class Bundle
location: class com.example.crystal.ball.MainActivity
public void onCreate(Bundle savedInstanceState) {
^
JavaTester.java:25: cannot find symbol
symbol : class Bundle
location: class JavaTester
activity.onCreate(new Bundle());
^
JavaTester.java:27: cannot find symbol
symbol : variable findViewByIdCallCount
location: class com.example.crystal.ball.MainActivity
if (activity.findViewByIdCallCount < 2) {
^
JavaTester.java:30: cannot find symbol
symbol : variable lastFoundViewId
location: class com.example.crystal.ball.MainActivity
else if (activity.lastFoundViewId != R.id.button1) {
^
./com/example/crystal/ball/MainActivity.java:13: cannot find symbol
symbol : variable super
location: class com.example.crystal.ball.MainActivity
super.onCreate(savedInstanceState);
^
./com/example/crystal/ball/MainActivity.java:14: cannot find symbol
symbol : method setContentView(int)
location: class com.example.crystal.ball.MainActivity
setContentView(R.layout.activity_main);
^
./com/example/crystal/ball/MainActivity.java:17: cannot find symbol
symbol : class TextView
location: class com.example.crystal.ball.MainActivity
TextView answerLabel = (TextView) findViewById(R.id.textView1);
^
./com/example/crystal/ball/MainActivity.java:17: cannot find symbol
symbol : class TextView
location: class com.example.crystal.ball.MainActivity
TextView answerLabel = (TextView) findViewById(R.id.textView1);
^
./com/example/crystal/ball/MainActivity.java:17: cannot find symbol
symbol : method findViewById(int)
location: class com.example.crystal.ball.MainActivity
TextView answerLabel = (TextView) findViewById(R.id.textView1);
^
./com/example/crystal/ball/MainActivity.java:18: cannot find symbol
symbol : class Button
location: class com.example.crystal.ball.MainActivity
Button getAnswerButton = (Button) findViewById(R.id.button1);
^
./com/example/crystal/ball/MainActivity.java:18: cannot find symbol
symbol : class Button
location: class com.example.crystal.ball.MainActivity
Button getAnswerButton = (Button) findViewById(R.id.button1);
^
./com/example/crystal/ball/MainActivity.java:18: cannot find symbol
symbol : method findViewById(int)
location: class com.example.crystal.ball.MainActivity
Button getAnswerButton = (Button) findViewById(R.id.button1);
^
./com/example/crystal/ball/MainActivity.java:11: method does not override or implement a method from a supertype
@Override
^
20 errors
2 Answers
Nathan Williams
Python Web Development Techdegree Student 6,851 PointsHi Shawn,
Thanks for posting this, and sorry for any inconvenience this may have caused.
We're in the process of rolling out some improvements to our code-challenge system to provide more reliablility and faster feedback on code submissions, and we've been running the new system in tandem with the old system tonight for testing before taking it live.
It looks like some of the challenges may have been having some trouble on the new system, so we shut them down while we investigated. This issue should be fixed now, and I confirmed I was able to pass the challenge with your provided code sample.
Thanks again for bringing this to our attention, and happy coding!
Regards,
Nathan W
Erin Kabbash
5,210 PointsI think you have an error on the first line of your package name.. try changing package com.example.crystal.ball; to package com.example.crystalball; usually the package names are com.something.nameofproject so that extra . looks suspicious. I am still learning as well but worth a try! Let me know if it helps!
Shawn Hebert
1,137 PointsThanks for your response Erin.
Changing "com.example.crystal.ball" to package "com.example.crystalball" gives me the following error:
JavaTester.java:24: cannot access com.example.crystal.ball.MainActivity
bad class file: RegularFileObject[./com/example/crystal/ball/MainActivity.java]
file does not contain class com.example.crystal.ball.MainActivity
Please remove or make sure it appears in the correct subdirectory of the classpath.
MainActivity activity = new MainActivity();
^
1 error
It looks like the correct package name may indeed be "com.example.crystal.ball".