Over a million developers have joined DZone.

Thursday Code Puzzler: A Simple Number Printing Exercise

DZone's Guide to

Thursday Code Puzzler: A Simple Number Printing Exercise

· Java Zone ·
Free Resource

The CMS developers love. Open Source, API-first and Enterprise-grade. Try BloomReach CMS for free.

It's Thursday already, so time for another code puzzler. The idea is simple: solve the coding problem as efficiently as you can, in any language or framework that you find suitable.

Note: Even though there really is nothing stopping you from finding a solution to this on the internet, try to keep honest, and come up with your own answer.  It's all about the participation!

Print From 45 to 4578 Without Repeating Digits 

Write a method that prints all the numbers from 45 to 4578 to the console, with the constraint that you cannot print any number with repeating digits. This means the following numbers would be skipped: 

11, 22, ...., 122, 110,.... 

Catch up on all our previous puzzlers here

BloomReach CMS: the API-first CMS of the future. Open-source & enterprise-grade. - As a Java developer, you will feel at home using Maven builds and your favorite IDE (e.g. Eclipse or IntelliJ) and continuous integration server (e.g. Jenkins). Manage your Java objects using Spring Framework, write your templates in JSP or Freemarker. Try for free.


Opinions expressed by DZone contributors are their own.

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}