Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

public class Main {
    public static String getSigFig(double value, int n) {
        String result = String.format("%.10f", value);
        int k = (int) (Math.log(Math.abs(value)) / Math.log(10));
        if ((k + 1) >= n) {
            // Assume value > 0
            result = result.substring(0, n);
        } else {
            if (value < 0) {
                n = n + 1;
            }
            if (0 < Math.abs(value) && Math.abs(value) < 1) {
                n = n + 1;
            }
            if (value != 0) {
                result = result.substring(0, n + 1);
            } else {
                n = n + 2;
                result = "0.0";
            }
            // Add trailing zeros
            while (result.length() < n) {
                result = result + "0";
            }
        }
        return result;
    }

    public static String[] getSigFig(double[] values, int n) {
        String[] result = new String[values.length];
        for (int i = 0; i < values.length; i++) {
            result[i] = getSigFig(values[i], n);
        }
        return result;
    }
}