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Android Android Activity Lifecycle Introducing SharedPreferences Saving and Retrieving Data with SharedPreferences

Posted by Hu Shien Tan
Hu Shien Tan
29,650 Points

Error while doing Android activity lifecycle code challenge

Challenge 1: We'd like to persist the value of a CheckBox by using SharedPreferences. Start by declaring a constant for the file name of our preferences called PREFS_FILE. Then declare a constant for the key we'll require; call it KEY_CHECKBOX.

I am most likely confident that my answer is correct. But there is a compiler error.

MainActivity.java 
import android.view.View;
import android.os.Bundle;

public class MainActivity extends Activity {

  public CheckBox mCheckBox;
  private static final String PREFS_FILE = "com.teamtreehouse.sharedpreferencesapp.preferences";
  private static final String KEY_CHECKBOX = "KEY_CHECKBOX";

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

    mCheckBox = (CheckBox) findViewById(R.id.checkBox);
  }
}

This is the compiler error

JavaTester.java:65: error: illegal start of expression import android.view.View; ^ JavaTester.java:65: error: not a statement import android.view.View; ^ JavaTester.java:66: error: illegal start of expression import android.os.Bundle; ^ JavaTester.java:66: error: not a statement import android.os.Bundle; ^ JavaTester.java:68: error: illegal start of expression public class MainActivity extends Activity { ^ 5 errors