/*
    FormatOutput.java
    CIS 160
    David Klick
    2015-09-02

    Demonstrates how a number can be formatted for output.
    Often used to set the number of decimal places displayed,
    such as in currency values.
    
    Note: This program crashes if the user enters something unexpected.
*/

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.text.DecimalFormat;

public class FormatOutput {
    public static void main(String[] args) throws IOException {

        // set up object to read from keyboard
        BufferedReader kbd = new BufferedReader(
            new InputStreamReader(System.in));

        // set up object to format number
        DecimalFormat twoPlaces = new DecimalFormat("######.00");

        // declare variables
        double x;
        String s, outString;

        // get input
        System.out.print("Enter a floating-point number: ");
        s = kbd.readLine();
        x = Double.parseDouble(s);

        // format output
        outString = twoPlaces.format(x);

        // display number entered
        System.out.println("The number entered was: " + outString);
    }
}

/*  Sample of three runs of program:

    Enter a floating-point number: 4.600
    The number entered was: 4.60

    Enter a floating-point number: 4.676
    The number entered was: 4.68

    Enter a floating-point number: 5
    The number entered was: 5.00
*/