package ring_ring.cal;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Main extends Activity {

	@SuppressWarnings("unchecked")
	public <T> T findViewById(Class<T> t, int id) {
		return (T) findViewById(id);
	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		Button button = (Button) findViewById(R.id.add);
		button.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				double x = Double.parseDouble(findViewById(EditText.class,
						R.id.x).getText().toString());
				double y = Double.parseDouble(findViewById(EditText.class,
						R.id.y).getText().toString());

				findViewById(TextView.class, R.id.result).setText("" + (x + y));
			}
		});
	}
}