package project.radiobutton;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.TextView;
public class RadiobuttonprojectActivity extends Activity {
private EditText et1,et2;
private TextView tv3;
private RadioButton r1,r2;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
et1=(EditText)findViewById(R.id.et1);
et2=(EditText)findViewById(R.id.et2);
tv3=(TextView)findViewById(R.id.tv3);
r1=(RadioButton)findViewById(R.id.r1);
r2=(RadioButton)findViewById(R.id.r2);
}
//Este método se ejecutará cuando se presione el botón
public void operar(View view) {
String valor1=et1.getText().toString();
String valor2=et2.getText().toString();
int nro1=Integer.parseInt(valor1);
int nro2=Integer.parseInt(valor2);
if (r1.isChecked()==true) {
int suma=nro1+nro2;
String resu=String.valueOf(suma);
tv3.setText(resu);
} else
if (r2.isChecked()==true) {
int resta=nro1-nro2;
String resu=String.valueOf(resta);
tv3.setText(resu);
}
}
}