public void onClick(DialogInterface dialog, int which) {
double e1 = Double.parseDouble(ed1.getText().toString());
double e2 = Double.parseDouble(ed2.getText().toString());
sum = e1 * e2;
if (sum > 26) {
tv1.setText("@string/jianyi1");
} else if (sum < 20) {
tv1.setText("@string/jianyi3");
} else {
tv1.setText("@string/jianyi2");
}
}
