I got this code from here.
public class Email extends Activity implements View.OnClickListener {
EditText personsEmail, intro, personsName, stupidThings, hatefulAction,
        outro;
String emailAdd, beginning, name, stupidAction, hatefulAct, out;
Button sendEmail;
@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.email);
    initializeVars();
    sendEmail.setOnClickListener(this);
}
private void initializeVars() {
    // TODO Auto-generated method stub
    personsEmail = (EditText) findViewById(R.id.etEmails);
    intro = (EditText) findViewById(R.id.etIntro);
    personsName = (EditText) findViewById(R.id.etName);
    stupidThings = (EditText) findViewById(R.id.etThings);
    hatefulAction = (EditText) findViewById(R.id.etAction);
    outro = (EditText) findViewById(R.id.etOutro);
    sendEmail = (Button) findViewById(R.id.bSentEmail);
}
public void onClick(View v) {
    // TODO Auto-generated method stub
    convertEditTextVarsIntoStringsAndYesThisIsAMethodWeCreated();
    String emailaddress[] = { emailAdd };
    String message = "Well hello "
            + name
            + " I just wanted to say "
            + beginning
            + ".  Not only that but I hate when you "
            + stupidAction
            + ", that just really makes me crazy.  I just want to make you "
            + hatefulAct
            + ".  Welp, thats all I wanted to chit-chatter about, oh and"
            + out
            + ".  Oh also if you get bored you should check out www.mybringback.com"
            + '\n' + "PS. I think I love you...   :(";
}
private void convertEditTextVarsIntoStringsAndYesThisIsAMethodWeCreated() {
    // TODO Auto-generated method stub
    emailAdd = personsEmail.getText().toString();
    beginning = intro.getText().toString();
    name = personsName.getText().toString();
    stupidAction = stupidThings.getText().toString();
    hatefulAct = hatefulAction.getText().toString();
    out = outro.getText().toString();
}
@Override
protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
    finish();
}
}