Invalid double in converting String to Double

问题

i get a NumberFormatException : invalid double "111,000,000" in this line of code :

double SalePotential = Double.valueOf(EtPotential.getText().toString());

in the beginning i've used Numberformat , to format my double value for separating number and inserted it to an EditText but when i try to retrieve the value of EditText it throws me the exception :

NumberFormat f = NumberFormat.getInstance();
EtPotential.setText(String.valueOf(f.format(PTData.SalePotential)));

i've also tried DecimalFormat or Double.parseDouble with no Success. any help would be Appreciated! :

DecimalFormat f = new DecimalFormat("###.###", DecimalFormatSymbols.getInstance());
double SalePotential = Double.parseDouble(EtPotential.getText().toString());

回答1:

Remove "," before parsing

double SalePotential = Double.parseDouble(EtPotential.getText().toString().replace(",", ""));

---

Update : With proper implementation

double salePotential = 0; // Variable name should start with small letter 
try {
    salePotential = Double.parseDouble(EtPotential.getText().toString().replace(",", ""));
} catch (NumberFormatException e) {
    // EditText EtPotential does not contain a valid double
}

Happy coding :)

回答2:

Use replace function to replace all occurences of ,

     String  s= EtPotential.getText().toString();
     s = s.replace(",", ""); 
     try
     {
       double SalePotential = Double.parseDouble(s);
     }catch(NumberFormatException e)
     {
         e.printStackTrace();
     }

来源：https://stackoverflow.com/questions/16434386/invalid-double-in-converting-string-to-double