Guerrero Serrano Aylin Miroslawa

Olvera Olmos Adrián

Posadas Pérez Yanori Marlene

package com.example.proyecto4;

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 calcular (View view){

EditText d1=(EditText) findViewById (R.id.num1);

EditText d2=(EditText) findViewById (R.id.num2);

TextView r=(TextView) findViewById (R.id.res);

RadioButton r0=(RadioButton) findViewById (R.id.radio0);

RadioButton r1=(RadioButton) findViewById (R.id.radio1);

double n1=Double.parseDouble(d1.getText().toString());

double n2=Double.parseDouble(d2.getText().toString());

double suma,resta;

if(r0.isChecked()==true){

suma=n1+n2;

r.setText(String.valueOf(suma));

}

else

if(r1.isChecked()==true){

resta=n1-n2;

r.setText(String.valueOf(resta));

}

}

}