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Write the activation code of the following android application activity in order that when a user presses the ADD button the sum of the two numbers in (txtnum1, txtnum2) will appear in (txtviewresult). Also, the activity should accept float numbers.
public class MainActivity extends AppCompatActivity {
private EditText txtnum1, txtnum2;
private TextView txtviewresult;
private Button btnadd;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtnum1 = (EditText) findViewById(R.id.txtnum1);
txtnum2 = (EditText) findViewById(R.id.txtnum2);
txtviewresult = (TextView) findViewById(R.id.txtviewresult);
btnadd = (Button) findViewById(R.id.btnadd);
btnadd.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
float num1 = Float.parseFloat(txtnum1.getText().toString());
float num2 = Float.parseFloat(txtnum2.getText().toString());
float result = num1 + num2;
txtviewresult.setText(String.valueOf(result));
}
});
}
}