java - 使用 NumberFormat 将美分转换为欧元

Answer 1

because val/100 is an Integer operation, so the deciaml part is stripped away. For instane int i = 1; int result = i / 2; will give you 0

Change to System.out.println(nf.format(((float)val/100)));

Answer 2

To force floating point arithmetic , you can use a double literal 100.0 or float literal 100.0f :

System.out.println(nf.format(val/100.0));