Given a string value and we have to convert it into a double.

給定一個字符串值，我們必須將其轉換為雙精度型。

Java conversion from String to Double

Java從String轉換為Double

To convert a String to Double, we can use the following methods of Double class (see the syntax given below...)

要將String轉換為Double ，我們可以使用Double類的以下方法(請參見下面給出的語法...)

Syntax:

句法：

Double Double.valueOf(String).doubleValue(); OR Double Double.parseDouble(String);

Java代碼將字符串轉換為Double (Java code to convert a String to Double)

//Java code to convert String to Double public class Main {public static void main(String args[]) {String str = "12345.87878d";//variable to store resultdouble result = 0;//converting string to double//method 1result = Double.valueOf(str).doubleValue();System.out.println("result (value of str as double) = " + result);//method 2result = Double.parseDouble(str);System.out.println("result (value of str as double) = " + result);} }

Output

輸出量

result (value of str as double) = 12345.87878 result (value of str as double) = 12345.87878

翻譯自: https://www.includehelp.com/java-programs/conversion-from-string-to-double-in-java.aspx

總結

以上是生活随笔為你收集整理的在Java中从字符串转换为双精度的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。