Java Number Round roundMultiplier(double n)

Description

round Multiplier

License

Open Source License

Declaration

public static String roundMultiplier(double n) 

Method Source Code

//package com.java2s;

public class Main {
    public static String roundMultiplier(double n) {
        if (n >= 0.9) {
            n = Math.round(n);/*from w  w w .j a va 2 s.c  o m*/
            if (n >= 10) { // Round to nearest multiple of 10.
                n = Math.round(n / 10) * 10;
            }
            if (n >= 100) { // Round to nearest multiple of 10.
                n = Math.round(n / 100) * 100;
            }
            if (n >= 1000) { // Round to nearest multiple of 10.;
                n = Math.round(n / 1000) * 1000;
            }
            return Integer.toString((int) n);
        } else {
            String base = roundMultiplier(1. / n);
            if (base.equals("1"))
                return base;
            else
                return "1/" + base;
        }
    }
}

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