public class MainActivity extends AppCompatActivity { EditText et; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); et= (EditText) findViewById(R.id.editText); } public void Tiklendi(View v){ if(v.getId()==R.id.button3){ CharSequence charSequence=et.getText(); if (TextUtils.isEmpty(charSequence)) { Toast.makeText(getApplicationContext(),”Boş Geçilemez”,Toast.LENGTH_LONG).show(); } else{ Intent intent = new Intent(getApplicationContext(), Ekran3.class); intent.putExtra(“anahtar”,charSequence); startActivity(intent); } } } } public class Ekran3 extends AppCompatActivity { @Override protected void>>>
