问题
How would I go about converting a measurement from, for example, 12.5 feet to 12ft 6in? How would I created that second number which reads only the decimal place when multiplying by 12?
right now I have double Measurement01 using other variables and some math to get me the feet in decimals. I send that to a textview with farf.setText(Measurement01 + " " + "ft");
Any help would be appreciated!
回答1:
Substract the integer portion:
float measurement = 12.5;
int feet = (int)measurement;
float fraction = measurement - feet;
int inches = (int)(12.0 * fraction);
回答2:
Quite simply, where length is the floating point length:
int feet = (int)length;
int inches = (length - feet) * 12.0;
: :
farf.setText (feet + " ft, " + inches + " inches");
回答3:
Building on @Ry4an's answer:
//... Other code above
float Measurement01 = 12.5;
int feet = (int)Measurement01;
float fraction = Measurement01 - feet;
int inches = (int)(12.0 * fraction);
// Display like: 2.5 = 2 ft 6 in, 0.25 = 3 in, 6.0 = 6 ft
farf.setText((0 != feet ? feet + " ft" : "") + (0 != inches ? " " + inches + " in" : ""));
来源：https://stackoverflow.com/questions/2137396/convert-decimal-feet-to-feet-and-inches