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求錯處,佢一直說我錯,但我不知怎改
package bmi.com;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.EditText;
import android.widget.Button;
public class BmiActivity extends Activity {
/** Called when the activity is first created. */
private TextView output;
private EditText m;
private EditText kg; private Button start;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
output = (TextView)findViewById(R.id.output) ;
m = (EditText)findViewById(R.id.m) ;
kg = (EditText)findViewById(R.id.kg) ;
start = (Button)findViewById(R.id.start) ;
start.setOnClickListener(startListener);
}
private Button.OnClickListener startListener = new Button.OnClickListener(){
@Override
public void onClick(View v) {
int x = Integer.parseInt(m.getText().toString());
int y = Integer.parseInt(kg.getText().toString());
double BMI = (double)y/(double)m*(double)m;
output.setText("+BMI+");
}
};
} |