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package com.example.orisa.mytask3;
 
import android.app.DatePickerDialog;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import java.util.Calendar;
import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.DatePicker;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
 
import org.w3c.dom.Text;
 
public class MainActivity extends AppCompatActivity {
 
    //部品の変数
    TextView showDate;
    ImageButton prevBtn, nextBtn;
    LinearLayout amLayout, pmLayout;
    FloatingActionButton fab;
 
    //日付を格納する変数
    String today_str;
    Calendar today_cal;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        //部品の取得
        showDate = (TextView)findViewById(R.id.showDate);
        prevBtn = (ImageButton) findViewById(R.id.prevBtn);
        nextBtn = (ImageButton) findViewById(R.id.nextBtn);
        amLayout = (LinearLayout)findViewById(R.id.amLayout);
        pmLayout = (LinearLayout)findViewById(R.id.pmLayout);
        fab = (FloatingActionButton)findViewById(R.id.fab);
 
        //日付表示欄にリスナーを登録
        showDate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //Calendarインスタンスの取得
                Calendar cal = Calendar.getInstance();
                //DatePickerDialogインスタンスの生成
                DatePickerDialog dialog = new DatePickerDialog(MainActivity.this,
                        new DatePickerDialog.OnDateSetListener() {
                            @Override
                            public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
                                //日付を取得
                                today_str = String.format("%d/%02d/%02d", year, month+1, dayOfMonth);
                                today_cal.set(year, month, dayOfMonth);
                                //日付を表示
                                showDate.setText(today_str);
                                //データベースを表示
                                showDB();
                            }
                        }, cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH));
                //DatePickerDialogの表示
                dialog.show();
            }
        });
 
        //矢印ボタンにリスナーを設定
        prevBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //Calendar変数を前日に設定する
                today_cal.add(Calendar.DAY_OF_MONTH, -1);
                today_str = calToStr(today_cal);
                //日付を表示
                showDate.setText(today_str);
                //データベースを表示
                showDB();
            }
        });
 
        nextBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //Calendar変数を翌日に設定する
                today_cal.add(Calendar.DAY_OF_MONTH, 1);
                today_str = calToStr(today_cal);
                //日付を表示
                showDate.setText(today_str);
                //データベースを表示
                showDB();
            }
        });
 
        //FloatingActionButtonにリスナーを登録
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //Intentインスタンスの生成
                Intent intent = new Intent(getApplication(), AddActivity.class);
                //activityの開始
                startActivity(intent);
            }
        });
    }
 
    @Override
    protected void onResume() {
        super.onResume();
 
        //今日の日付を取得
        today_cal = Calendar.getInstance();
        today_str = calToStr(today_cal);
        //日付を表示
        showDate.setText(today_str);
 
        //データベースを表示
        showDB();
    }
 
 
    //Action Bar関連
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.main_activity_actions, menu);
        return super.onCreateOptionsMenu(menu);
    }
 
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
 
        //dialogの設定
        builder.setMessage("Delete all tasks?");
 
        //OKボタンの設定
        builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                //データベースの全削除
                deleteAllDB();
                //データベースの表示
                showDB();
                //Toastの表示
                Toast.makeText(MainActivity.this, "deleted all tasks", Toast.LENGTH_SHORT).show();
            }
        });
 
        //CANCELボタンの設定
        builder.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
            }
        });
 
        switch (item.getItemId()){
            case R.id.deleteAll:
                //dialogの描画
                builder.create();
                builder.show();
                break;
            default:
                break;
        }
        return super.onOptionsItemSelected(item);
    }
 
    //CalendarからStringに変換するメソッド
    protected String calToStr(Calendar cal){
        String str = String.format("%d/%02d/%02d", cal.get(Calendar.YEAR),
                cal.get(Calendar.MONTH)+1, cal.get(Calendar.DAY_OF_MONTH));
        return str;
    }
 
    //データベースを表示するメソッド
    protected void showDB(){
        //データベースの取得
        MyDBHelper helper = new MyDBHelper(MainActivity.this);
        final SQLiteDatabase db = helper.getWritableDatabase();
 
        //表示のクリア
        amLayout.removeAllViews();
        pmLayout.removeAllViews();
 
        //検索して表示
        final Cursor c_am = db.query("default_tb", new String[]{"task_col", "checked_col"},
                "date_col =? AND time_col =?", new String[] {today_str, "AM"},
                null, null, null);
        boolean bool = c_am.moveToFirst();
        while(bool){
            //CheckBoxの設定
            final CheckBox cb = new CheckBox(MainActivity.this);
            // TODO: CheckBoxのテキストサイズを設定
            cb.setText(c_am.getString(0));
            cb.setTextAppearance(R.style.TextAppearance_AppCompat_Medium);
 
            //CheckBoxにリスナーをつける
            cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    //DBのアップデート処理
                    ContentValues val = new ContentValues();
                    val.put("checked_col", 1);
                    db.update("default_tb", val, "task_col =?", new String[]{cb.getText().toString()});
                }
            });
            //checkedが1(=TRUE)なら、checkedにする
            if(c_am.getInt(1) == 1){
                cb.setChecked(true);
            }
 
            //全体のlayoutに追加
            amLayout.addView(setRow(cb));
            bool = c_am.moveToNext();
        }
        c_am.close();
 
        final Cursor c_pm = db.query("default_tb", new String[]{"task_col", "checked_col"},
                "date_col =? AND time_col =?", new String[] {today_str, "PM"},
                null, null, null);
        bool = c_pm.moveToFirst();
        while(bool){
            //CheckBoxの設定
            final CheckBox cb = new CheckBox(MainActivity.this);
            cb.setText(c_pm.getString(0));
            cb.setTextAppearance(R.style.TextAppearance_AppCompat_Medium);
            //CheckBoxにリスナーをつける
            cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    //DBのアップデート処理
                    ContentValues val = new ContentValues();
                    val.put("checked_col", 1);
                    db.update("default_tb", val, "task_col =?", new String[]{cb.getText().toString()});
                }
            });
            //checkedが1(=TRUE)なら、checkedにする
            if(c_pm.getInt(1) == 1){
                cb.setChecked(true);
            }
 
            //全体のlayoutに追加
            pmLayout.addView(setRow(cb));
            bool = c_pm.moveToNext();
        }
        c_pm.close();
    }
 
    //showDBの中で、部品を配置するメソッド
    protected LinearLayout setRow(CheckBox cb_param){
        //CheckBox変数
        final CheckBox cb = cb_param;
 
        //アイコンの設定
        ImageButton edit_btn = new ImageButton(MainActivity.this);
        edit_btn.setImageResource(R.drawable.ic_edit);
        edit_btn.setBackground(null);
 
        ImageButton delete_btn = new ImageButton(MainActivity.this);
        delete_btn.setImageResource(R.drawable.ic_delete);
        delete_btn.setBackground(null);
 
        //リスナーの登録
        edit_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //UPDATE画面に遷移
                Intent intent = new Intent(getApplication(), UpdateActivity.class);
                //intentにデータを渡す
                intent.putExtra("task_data", cb.getText().toString());
                startActivity(intent);
            }
        });
        delete_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //データベースを削除
                deleteDb(cb.getText().toString());
 
                //CheckBoxが入っているLayoutを取得
                LinearLayout ll = (LinearLayout)cb.getParent();
                //Layoutが入ってるLayoutを取得
                LinearLayout ll_p = (LinearLayout)ll.getParent();
                //CheckBoxの入っているLayoutのindexを取得
                int ll_index = ((ViewGroup)ll_p).indexOfChild(ll);
                //CheckBoxの入っているLayoutを削除
                ll_p.removeViewAt(ll_index);
            }
        });
 
        //LinearLayoutの設定
        LinearLayout layout = new LinearLayout(MainActivity.this);//インスタンスの生成
        layout.setGravity(Gravity.CENTER_VERTICAL);//Gravityの設定
 
        //CheckBoxとImageButtonの間をうめるやつ
        View view = new View(MainActivity.this);
        LinearLayout.LayoutParams v_lp = new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT, 1, 1f);
        view.setLayoutParams(v_lp);
 
        //LinearLayoutに部品を追加
        layout.addView(cb);
        layout.addView(view);
        layout.addView(edit_btn);
        layout.addView(delete_btn);
 
        return layout;
    }
 
    //データベースを削除
    protected void deleteDb(String task_str){
        //データベースの取得
        MyDBHelper helper = new MyDBHelper(MainActivity.this);
        SQLiteDatabase db = helper.getWritableDatabase();
 
        //データベースの削除
        db.delete("default_tb", "task_col =?", new String[]{task_str});
    }
 
    //データベースの全削除をするメソッド
    protected void deleteAllDB(){
        //データベースの取得
        MyDBHelper helper = new MyDBHelper(MainActivity.this);
        SQLiteDatabase db = helper.getWritableDatabase();
 
        //データベース削除
        db.delete("default_tb", null, null);
    }
}
 

Main.java:31: error: class MainActivity is public, should be declared in a file named MainActivity.java
public class MainActivity extends AppCompatActivity {
       ^
Main.java:3: error: package android.app does not exist
import android.app.DatePickerDialog;
                  ^
Main.java:4: error: package android.content does not exist
import android.content.ContentValues;
                      ^
Main.java:5: error: package android.content does not exist
import android.content.DialogInterface;
                      ^
Main.java:6: error: package android.content does not exist
import android.content.Intent;
                      ^
Main.java:7: error: package android.database does not exist
import android.database.Cursor;
                       ^
Main.java:8: error: package android.database.sqlite does not exist
import android.database.sqlite.SQLiteDatabase;
                              ^
Main.java:10: error: package android.support.design.widget does not exist
import android.support.design.widget.FloatingActionButton;
                                    ^
Main.java:11: error: package android.support.v7.app does not exist
import android.support.v7.app.AlertDialog;
                             ^
Main.java:12: error: package android.support.v7.app does not exist
import android.support.v7.app.AppCompatActivity;
                             ^
Main.java:13: error: package android.os does not exist
import android.os.Bundle;
                 ^
Main.java:14: error: package android.view does not exist
import android.view.Gravity;
                   ^
Main.java:15: error: package android.view does not exist
import android.view.Menu;
                   ^
Main.java:16: error: package android.view does not exist
import android.view.MenuInflater;
                   ^
Main.java:17: error: package android.view does not exist
import android.view.MenuItem;
                   ^
Main.java:18: error: package android.view does not exist
import android.view.View;
                   ^
Main.java:19: error: package android.view does not exist
import android.view.ViewGroup;
                   ^
Main.java:20: error: package android.widget does not exist
import android.widget.Button;
                     ^
Main.java:21: error: package android.widget does not exist
import android.widget.CheckBox;
                     ^
Main.java:22: error: package android.widget does not exist
import android.widget.CompoundButton;
                     ^
Main.java:23: error: package android.widget does not exist
import android.widget.DatePicker;
                     ^
Main.java:24: error: package android.widget does not exist
import android.widget.ImageButton;
                     ^
Main.java:25: error: package android.widget does not exist
import android.widget.LinearLayout;
                     ^
Main.java:26: error: package android.widget does not exist
import android.widget.TextView;
                     ^
Main.java:27: error: package android.widget does not exist
import android.widget.Toast;
                     ^
Main.java:31: error: cannot find symbol
public class MainActivity extends AppCompatActivity {
                                  ^
  symbol: class AppCompatActivity
Main.java:34: error: cannot find symbol
    TextView showDate;
    ^
  symbol:   class TextView
  location: class MainActivity
Main.java:35: error: cannot find symbol
    ImageButton prevBtn, nextBtn;
    ^
  symbol:   class ImageButton
  location: class MainActivity
Main.java:36: error: cannot find symbol
    LinearLayout amLayout, pmLayout;
    ^
  symbol:   class LinearLayout
  location: class MainActivity
Main.java:37: error: cannot find symbol
    FloatingActionButton fab;
    ^
  symbol:   class FloatingActionButton
  location: class MainActivity
Main.java:44: error: cannot find symbol
    protected void onCreate(Bundle savedInstanceState) {
                            ^
  symbol:   class Bundle
  location: class MainActivity
Main.java:137: error: cannot find symbol
    public boolean onCreateOptionsMenu(Menu menu) {
                                       ^
  symbol:   class Menu
  location: class MainActivity
Main.java:144: error: cannot find symbol
    public boolean onOptionsItemSelected(MenuItem item) {
                                         ^
  symbol:   class MenuItem
  location: class MainActivity
Main.java:264: error: cannot find symbol
    protected LinearLayout setRow(CheckBox cb_param){
                                  ^
  symbol:   class CheckBox
  location: class MainActivity
Main.java:264: error: cannot find symbol
    protected LinearLayout setRow(CheckBox cb_param){
              ^
  symbol:   class LinearLayout
  location: class MainActivity
Main.java:43: error: method does not override or implement a method from a supertype
    @Override
    ^
Main.java:45: error: cannot find symbol
        super.onCreate(savedInstanceState);
        ^
  symbol:   variable super
  location: class MainActivity
Main.java:46: error: package R does not exist
        setContentView(R.layout.activity_main);
                        ^
Main.java:49: error: cannot find symbol
        showDate = (TextView)findViewById(R.id.showDate);
                    ^
  symbol:   class TextView
  location: class MainActivity
Main.java:49: error: package R does not exist
        showDate = (TextView)findViewById(R.id.showDate);
                                           ^
Main.java:50: error: cannot find symbol
        prevBtn = (ImageButton) findViewById(R.id.prevBtn);
                   ^
  symbol:   class ImageButton
  location: class MainActivity
Main.java:50: error: package R does not exist
        prevBtn = (ImageButton) findViewById(R.id.prevBtn);
                                              ^
Main.java:51: error: cannot find symbol
        nextBtn = (ImageButton) findViewById(R.id.nextBtn);
                   ^
  symbol:   class ImageButton
  location: class MainActivity
Main.java:51: error: package R does not exist
        nextBtn = (ImageButton) findViewById(R.id.nextBtn);
                                              ^
Main.java:52: error: cannot find symbol
        amLayout = (LinearLayout)findViewById(R.id.amLayout);
                    ^
  symbol:   class LinearLayout
  location: class MainActivity
Main.java:52: error: package R does not exist
        amLayout = (LinearLayout)findViewById(R.id.amLayout);
                                               ^
Main.java:53: error: cannot find symbol
        pmLayout = (LinearLayout)findViewById(R.id.pmLayout);
                    ^
  symbol:   class LinearLayout
  location: class MainActivity
Main.java:53: error: package R does not exist
        pmLayout = (LinearLayout)findViewById(R.id.pmLayout);
                                               ^
Main.java:54: error: cannot find symbol
        fab = (FloatingActionButton)findViewById(R.id.fab);
               ^
  symbol:   class FloatingActionButton
  location: class MainActivity
Main.java:54: error: package R does not exist
        fab = (FloatingActionButton)findViewById(R.id.fab);
                                                  ^
Main.java:57: error: package View does not exist
        showDate.setOnClickListener(new View.OnClickListener() {
                                            ^
Main.java:82: error: package View does not exist
        prevBtn.setOnClickListener(new View.OnClickListener() {
                                           ^
Main.java:95: error: package View does not exist
        nextBtn.setOnClickListener(new View.OnClickListener() {
                                           ^
Main.java:109: error: package View does not exist
        fab.setOnClickListener(new View.OnClickListener() {
                                       ^
Main.java:120: error: method does not override or implement a method from a supertype
    @Override
    ^
Main.java:122: error: cannot find symbol
        super.onResume();
        ^
  symbol:   variable super
  location: class MainActivity
Main.java:136: error: method does not override or implement a method from a supertype
    @Override
    ^
Main.java:138: error: cannot find symbol
        MenuInflater inflater = getMenuInflater();
        ^
  symbol:   class MenuInflater
  location: class MainActivity
Main.java:138: error: cannot find symbol
        MenuInflater inflater = getMenuInflater();
                                ^
  symbol:   method getMenuInflater()
  location: class MainActivity
Main.java:139: error: package R does not exist
        inflater.inflate(R.menu.main_activity_actions, menu);
                          ^
Main.java:140: error: cannot find symbol
        return super.onCreateOptionsMenu(menu);
               ^
  symbol:   variable super
  location: class MainActivity
Main.java:143: error: method does not override or implement a method from a supertype
    @Override
    ^
Main.java:145: error: package AlertDialog does not exist
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
                   ^
Main.java:145: error: package AlertDialog does not exist
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
                                                     ^
Main.java:151: error: package DialogInterface does not exist
        builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                                                           ^
Main.java:164: error: package DialogInterface does not exist
        builder.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
                                                               ^
Main.java:171: error: package R does not exist
            case R.id.deleteAll:
                  ^
Main.java:179: error: cannot find symbol
        return super.onOptionsItemSelected(item);
               ^
  symbol:   variable super
  location: class MainActivity
Main.java:192: error: cannot find symbol
        MyDBHelper helper = new MyDBHelper(MainActivity.this);
        ^
  symbol:   class MyDBHelper
  location: class MainActivity
Main.java:192: error: cannot find symbol
        MyDBHelper helper = new MyDBHelper(MainActivity.this);
                                ^
  symbol:   class MyDBHelper
  location: class MainActivity
Main.java:193: error: cannot find symbol
        final SQLiteDatabase db = helper.getWritableDatabase();
              ^
  symbol:   class SQLiteDatabase
  location: class MainActivity
Main.java:200: error: cannot find symbol
        final Cursor c_am = db.query("default_tb", new String[]{"task_col", "checked_col"},
              ^
  symbol:   class Cursor
  location: class MainActivity
Main.java:206: error: cannot find symbol
            final CheckBox cb = new CheckBox(MainActivity.this);
                  ^
  symbol:   class CheckBox
  location: class MainActivity
Main.java:206: error: cannot find symbol
            final CheckBox cb = new CheckBox(MainActivity.this);
                                    ^
  symbol:   class CheckBox
  location: class MainActivity
Main.java:209: error: package R does not exist
            cb.setTextAppearance(R.style.TextAppearance_AppCompat_Medium);
                                  ^
Main.java:212: error: package CompoundButton does not exist
            cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                                                            ^
Main.java:232: error: cannot find symbol
        final Cursor c_pm = db.query("default_tb", new String[]{"task_col", "checked_col"},
              ^
  symbol:   class Cursor
  location: class MainActivity
Main.java:238: error: cannot find symbol
            final CheckBox cb = new CheckBox(MainActivity.this);
                  ^
  symbol:   class CheckBox
  location: class MainActivity
Main.java:238: error: cannot find symbol
            final CheckBox cb = new CheckBox(MainActivity.this);
                                    ^
  symbol:   class CheckBox
  location: class MainActivity
Main.java:240: error: package R does not exist
            cb.setTextAppearance(R.style.TextAppearance_AppCompat_Medium);
                                  ^
Main.java:242: error: package CompoundButton does not exist
            cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                                                            ^
Main.java:266: error: cannot find symbol
        final CheckBox cb = cb_param;
              ^
  symbol:   class CheckBox
  location: class MainActivity
Main.java:269: error: cannot find symbol
        ImageButton edit_btn = new ImageButton(MainActivity.this);
        ^
  symbol:   class ImageButton
  location: class MainActivity
Main.java:269: error: cannot find symbol
        ImageButton edit_btn = new ImageButton(MainActivity.this);
                                   ^
  symbol:   class ImageButton
  location: class MainActivity
Main.java:270: error: package R does not exist
        edit_btn.setImageResource(R.drawable.ic_edit);
                                   ^
Main.java:273: error: cannot find symbol
        ImageButton delete_btn = new ImageButton(MainActivity.this);
        ^
  symbol:   class ImageButton
  location: class MainActivity
Main.java:273: error: cannot find symbol
        ImageButton delete_btn = new ImageButton(MainActivity.this);
                                     ^
  symbol:   class ImageButton
  location: class MainActivity
Main.java:274: error: package R does not exist
        delete_btn.setImageResource(R.drawable.ic_delete);
                                     ^
Main.java:278: error: package View does not exist
        edit_btn.setOnClickListener(new View.OnClickListener() {
                                            ^
Main.java:288: error: package View does not exist
        delete_btn.setOnClickListener(new View.OnClickListener() {
                                              ^
Main.java:306: error: cannot find symbol
        LinearLayout layout = new LinearLayout(MainActivity.this);//?????????
        ^
  symbol:   class LinearLayout
  location: class MainActivity
Main.java:306: error: cannot find symbol
        LinearLayout layout = new LinearLayout(MainActivity.this);//?????????
                                  ^
  symbol:   class LinearLayout
  location: class MainActivity
Main.java:307: error: cannot find symbol
        layout.setGravity(Gravity.CENTER_VERTICAL);//Gravity???
                          ^
  symbol:   variable Gravity
  location: class MainActivity
Main.java:310: error: cannot find symbol
        View view = new View(MainActivity.this);
        ^
  symbol:   class View
  location: class MainActivity
Main.java:310: error: cannot find symbol
        View view = new View(MainActivity.this);
                        ^
  symbol:   class View
  location: class MainActivity
Main.java:311: error: package LinearLayout does not exist
        LinearLayout.LayoutParams v_lp = new LinearLayout.LayoutParams(
                    ^
Main.java:311: error: package LinearLayout does not exist
        LinearLayout.LayoutParams v_lp = new LinearLayout.LayoutParams(
                                                         ^
Main.java:312: error: package ViewGroup does not exist
                ViewGroup.LayoutParams.WRAP_CONTENT, 1, 1f);
                         ^
Main.java:327: error: cannot find symbol
        MyDBHelper helper = new MyDBHelper(MainActivity.this);
        ^
  symbol:   class MyDBHelper
  location: class MainActivity
Main.java:327: error: cannot find symbol
        MyDBHelper helper = new MyDBHelper(MainActivity.this);
                                ^
  symbol:   class MyDBHelper
  location: class MainActivity
100 errors

Standard output is empty