Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {

    public static String formatString(String str) {
        int i = str.length();
        while (i > 3) {
            str = str.substring(0, i - 3) + "," + str.substring(i - 3);
            i -= 3;
        }
        return str;
    }
}