How to close an activity at launch in Android

In my app I have two activities. At the time of launch I am showing an edit text box and a button in the first activity. When the button is clicked, it moves to the next activity.

Before that, when the edit box is typed, it gets stored in a database. When the activity gets started it checks over the database. If the database is empty it shows the first activity else if the database is filled I want to show the second activity directly. But it is not happening in my code. Please anyone help me? I want to know where I am going wrong…

super.onCreate(savedInstanceState);

    db = openOrCreateDatabase("TestData.db", SQLiteDatabase.CREATE_IF_NECESSARY, null);
    db.setVersion(1);
    db.setLocale(Locale.getDefault());
    db.setLockingEnabled(true);
    final String CREATE_TABLE_COUNTRIES ="CREATE TABLE IF NOT EXISTS tbl_countries (id TEXT);";
    db.execSQL(CREATE_TABLE_COUNTRIES);
    ContentValues values = new ContentValues();
    values.put("id", textvalue );
    Cursor cx = db.rawQuery("select id from tbl_countries"  , null);
    counter=0;
    if (cx != null ) 
    {
        if  (cx.moveToFirst()) 
        {
            do 
            {
                counter=counter+1;
            }
            while (cx.moveToNext());
        }
    }                             
    db.close();         

    if(counter == 0)
    {
        setContentView(R.layout.main);
        et = (EditText)findViewById(R.id.editText1);

        textvalue = et.getText().toString();
        b = (Button)findViewById(R.id.button1); 
        b.setOnClickListener(new View.OnClickListener() 
        {   
            @Override
            public void onClick(View v) 
            {
                Intent myIntent = new Intent(getBaseContext(), SeconDClass.class);
                startActivityForResult(myIntent, 0);
                finish();
            }
        });
    }
    else if(counter>=1)
    {
        Intent myIntent = new Intent开发者_如何学JAVA(getBaseContext(), SeconDClass.class);
        startActivityForResult(myIntent, 0);
        finish();             
    }

I think it might be because of this

 startActivityForResult(myIntent, 0);
        finish();

It doesn't make sense to finish the activity that would be receiving the result.

try just startActivity(), you don't really need to call finish() the first one.