将字符串转换为双精度示例

 

public class Main {

 
 /*
 来 自*
  时 代 J a v a
 */

  public static void main(String[] args) {

    //1. Construct Double using constructor.

    Double dObj1 = new Double("100.564");

    System.out.println(dObj1);

   

    //2. Use valueOf method of Double class. This method is static.

    String str1 = "100.476";

    Double dObj2 = Double.valueOf(str1);

    System.out.println(dObj2);

   

    /*

    To convert a String object to a double primitive value parseDouble method

    of Double class. 

    */

    String str2 =