double格式化（指定保留位数）.txt

自己总结的java编程常用代码。。。。方便开发

double d = 10000.0 / 3.0; 


NumberFormat numberFormat = NumberFormat.getNumberInstance(); 


numberFormat.setMaximumFractionDigits(4); 


numberFormat.setMinimumIntegerDigits(6); 


String numberString = numberFormat.format(d); 


System.out.println(numberString);