Java Fraction Format format(double num)

Description

format

License

Apache License

Declaration

public static String format(double num) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.text.DecimalFormat;

public class Main {

    public static String format(double num) {
        return new DecimalFormat(",###").format(num);
    }/*from w w  w .  jav  a2s.c  om*/

    public static String format(double num, int n) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < n; i++) {
            sb.append('0');
        }
        return new DecimalFormat("0." + sb.toString()).format(num);
    }
}

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