Java 格式化双精度和长十进制值

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import java.text.DecimalFormat;

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import java.text.NumberFormat;//N  o w  J a v a . c o m

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import java.util.Locale;

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public class Main {

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  public static void main(String[] args) {

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    formatDouble(new Double("345.9372"));

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  }

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  public static void formatDouble(double myDouble) {

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    NumberFormat numberFormatter = new DecimalFormat("##.000");

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    String result = numberFormatter.format(myDouble);

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    System.out.println(result);

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    // Obtains an instance of NumberFormat class

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    NumberFormat format = NumberFormat.getInstance();

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    // Format a double value for the current locale

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    String result2 = format.format(83.404);

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    System.out.println("Current Locale: " + result2);

    /**

     from

    * 时 代 J a v a 公 众 号 - nowjava.com 

    **/

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    // Format a double value for an Italian locale

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    result = NumberFormat.getInstance(Locale.ITALIAN).format(83.404);

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    System.out.println("Italian Locale: " + result);

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    // Parse a String into a Number

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    try {

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