tutorial practica 6(
TRANSCRIPT
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.TextView;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void operar(View view) {
EditText et1=(EditText)findViewById(R.id.et1);
EditText et2=(EditText)findViewById(R.id.et2);
TextView tv3=(TextView)findViewById(R.id.tv3);
RadioButton radio0=(RadioButton)findViewById(R.id.radio0);
RadioButton radio1=(RadioButton)findViewById(R.id.radio1);
int nro1=Integer.parseInt(et1.getText().toString());
int nro2=Integer.parseInt(et2.getText().toString());
SE AGREGA EL FORMATO EN EL MAIN ACTIVITY .JAVA Y SE CORRE.
if(radio0.isChecked()==true){
int suma=nro1+nro2;
String resultado=String.valueOf(suma);
tv3.setText(resultado);
}else
if(radio1.isChecked()==true){
int resta=nro1-nro2;
String resultado=String.valueOf(resta);
tv3.setText(resultado);
}
}
}