将浮点转换为字符串

Question

I'm pretty new to Java and I am currently working on a project where I need to work with Floating points .

I am trying to convert the value from 3.5E8 (Double value) to a string value of 350000000. I have looked on the internet but currently I can't find a solution.

Answer 1

采用：

new BigDecimal(yourValue).toPlainString();

Answer 2

try String.format

String str = String.format("%.0f",3.5E8);

or

String str = new DecimalFormat("#.#").format(3.5E8);

Answer 3

You can use the BigDecimal class , toPlainString() method :

Returns a string representation of this BigDecimal without an exponent field.

 System.out.println(new BigDecimal(doubleValue).toPlainString());