SEARCH KEYWORD -- Java programmer
Tomcat vs. Apache: Why One Over the Other?
When determining which type of web server to use, the differences and technical details can be daunting. It can be a difficult task to compare web servers and make the decision on which is best for you and your project. Since Apache is currently the most popular web server, this article will discuss the differences between the Apache Web Server and Apache Tomcat, which are very different and fulfill different needs.The Apache Web Server, often just called “Apache†or â€...
Apache,Tomcat,Choice,Web server 2012-03-23 12:01:25
Convert JKS to BKS using keytool
There are lots of questions(question 1, question 2) on Stackoverflow about how to convert JKS keystore to BKS keystore(a keystore format provided by BouncyCastle) using Java keytool. The reason why this conversion gets lots of questions is that BKS is not a keystore format supported by Java SE, it's a third party keystore format. To convert JSK to BKS, the BKS provider has to be downloaded first. And a few more options needs to be added when running the keytool command. The typical co...
Java Cipher encryption/decryption example
In Java, Cipher is the API for doing data encryption/decryption. Many cryptographic algorithms such as AES, DES, RC4 etc can be specified when creating Cipher instance. The Cipher instance calls the underlying algorithm specific implementation to do the actual encryption/decryption. Before doing the encryption/decryption, a key needs to be created and it will be used to do the encryption/decryption. A sample program for performing all these is : import java.security.Key; import javax.cryp...
Java, Java Security, Cipher, Example, Sample 2015-08-14 07:07:10
Different types of keystore in Java -- Windows-MY
Windows-MY is a type of keystore on Windows which is managed by the Windows operating system. It stores the user keys and certificates which can be used to perform cryptographic operations such as signature verification, data encryption etc. Since it's a kind of native keystore, Java doesn't have a general API to access it. To help Java applications access the keys and certificates stored in Windows-MY keystore, Java provides a separate API -- SunMSCAPI. The SunMSCAPI provider is ...
JAVA,KEYSTORE,WINDOWS-MY,SUNMSCAPI 2016-01-09 05:45:59
Why exception would be thrown when deleting element while looping through HashMap in Java
HashMap and other Collection types are frequently used in Java application programming. This post will explain why exception would be thrown when deleting element with Map.remove() while looping through a Map using Iterator. This issue would also occur to other Collection types such as Set, List. Below is a sample code snippet demonstrating the exception thrown. Map<String,String> map = Collections.synchronizedMap(new TreeMap<String,String>()); map.put("key1","value1"); map.put("ke...
JAVA,HASHMAP,CONCURRENTMODIFICATIONEXCEPTION 2018-06-30 12:49:09
Seven Java projects that changed the world
O\'Reilly is celebrating the release of Java 7, and our inaugural OSCON Java conference: July 25-27 in Portland, Ore. Java\'s open source ecosystem is strong and healthy, one of the primary reasons for our creation of OSCON Java. Over the last decade, several projects have traveled beyond mere adoption and had effects dominating the Java world, into software development in general, and some even further into the daily lives of users. JUnit Ported to Java by Kent Beck and Erich Gamma from Be...
Android socket programming example
Socket is a kind of interface for different sides t communicate, it usually identified by an IP and a port. There are many server side software on a server and they would provide different service. Each server many create some sockets and bind them to some ports so that clients can listen to. Software on the Internet will exchange data though a bidirectional connection established. Each end of the connection has a socket created. In Java, Socket and ServerSocket are in java.net package, ServerSo...
How To Write A Good Programming Test
I’ve taken and marked a lot of programming tests in the past. I love doing them as it’s always good to see what challenges different programmers have come up with when designing them. Unfortunately, however, most of them aren’t very good. Below is a list of general ideas to help increase the quality of programmer tests. 1. Keep it relevant Too many of the tests have questions on content that simply isn’t relevant to the job. The whole idea behind a programming test i...
Programming test,Interview,Questions,Pro 2011-08-26 02:46:44
Why Use Java?
Java was developed by Sun Micro-systems back in 1995 to function as high level programming language and serve as a computing platform. This gets regularly updated with new features and better compatibility. The latest version is Java SE 8.0 which released in 2014, March. Java has gained immense popularity while there have been various platforms to match up with the Java configurations like Java SE for Macintosh, Windows and UNIX, Java ME for Mobile Applications and Java EE for Enterpr...
JAVA APPLICATION DEVELOPMENT,JAVA WEB DEVELOPMENT,JAVA OUTSOURCING COMPANY 2018-07-06 00:05:31
Bad code plagues business applications, especially Java ones
A new study examining 365 million lines of code in 745 applications identifies bad coding practices that affect security, performance and uptime, with Java Enterprise Edition applications having the greatest number of problems. Cast Software, which makes tools that automate the analysis of business applications, examined programs written in Java-EE, .NET, ABAP, C, C++, Cobol, Oracle Forms, and Visual Basic, used across a wide range of industries from energy and financial services to IT co...
RECENT
- Tips for Socializing With Friends During College
- Proximity Cards Do More Than Just Open Doors
- How to choose quality painted auto parts
- Oval engagement rings from MoonOcean: Elegance of form and individual approach
- Hologres vs AWS Redshift
- GoLand connect to Hologres
- A journey to investigate a goroutine leakage case
- Understanding Slice Behavior in Go
- Breaking Barriers: How 3D Printing is Democratizing Product Development
- The Power of Efficiency: 10 Practical Energy-Saving Tips for Tech Startups
- more>>