请帮我查看此bmi计算的结果到两位小数。更改为小数点后两位
这里是我的代码...
@Override
public void onClick(View v) {
double weight;
double height;
double bmi;
String msg = "";
if (field_height.getText().toString().equals("") || field_weight.getText().toString().equals("")){
Toast.makeText(getApplicationContext(), "No Valid Values!", Toast.LENGTH_LONG);
}else {
weight = Double.parseDouble(field_weight.getText().toString());
height = Double.parseDouble(field_height.getText().toString());
bmi = height * height;
bmi = (weight/bmi);
}
}
这将有助于'String result = String.format(“%。2f”,bmi);' –