package pt.ubi.di.pmd.acalculator; import android.app.Activity; import android.os.Bundle; import android.view.*; import android.widget.*; public class ACalculator extends Activity { EditText oTEdit1 ; EditText oTEdit2 ; Button oButton ; TextView oTView1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_acalculator); oTEdit1 = ( EditText ) findViewById(R. id .number1) ; oTEdit2 = ( EditText ) findViewById(R. id .number2) ; oButton = (Button) findViewById(R. id .SUM) ; oTView1 = (TextView) findViewById(R. id . result ) ; oButton.setOnClickListener ( new View.OnClickListener () { public void onClick (View oView) { double d1 = (new Double(oTEdit1 . getText () . toString () ) ) . doubleValue () ; double d2 = (new Double(oTEdit2 . getText () . toString () ) ) . doubleValue () ; double dSum = d1 + d2; String dSum1=dSum.ToString(); oTView1.setText(dSum); } }) ; } }