sdk

It should be like this public class MainActivity extends AppCompatActivity { EditText number1, number2….. double ach1, ach2…. @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initializeUi(); …………….. ……………….. …………….. } private void initializeUi() { number1 = (EditText) findViewById(R.id.achieved1); number2 = (EditText) findViewById(R.id.achieved2); number3 = (EditText) findViewById(R.id.achieved3); number4 = (EditText) findViewById(R.id.achieved4); number5 = (EditText) findViewById(R.id.achieved5); number6 … Read more