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Read double values from a file in java:

You can read double from file using the following code :
Code:

    try 
{
        FileInputStream fileInputStream = new FileInputStream(new File("Your file path"));
        DataInputStream dataInputStream = new DataInputStream(fileInputStream);
        dataInputStream.readDouble();
        } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        }
  


you can read from file using the following code links :
java-examples/file-write-read-t3265.html


Or you can the double from the user input console using the following code :
Code:

        Scanner scanner 
= new Scanner(System.in);
        scanner.nextDouble();
  





Last edited by DrRakha on Thu Oct 08, 2009 9:48 pm, edited 2 times in total.

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