A small team of software programmers, led by James Gosling, working at Sun Microsystems, developed the Java programming language. The work on Java started at Sun with the “Green Team” in 1991. The first official public release of Java was in 1995. In 2009, Oracle bought Sun in a transaction valued at $7.4 billion. In 2010, James Gosling resigned from Oracle. In 2015, Java celebrated its 20th anniversary. The original concept behind the Java programming language was to create a software language that would allow any consumer device to connect to computer networks. With the explosive growth in Internet usage that started in 1995, the Java programming language helped make exploring the Internet a more interesting and dynamic experience.
Java Programming Code
Java programming code worked well with the Netscape browser. Just one year after its launch, more than 160 companies had products based on Java software code. As documented by the Oracle Java timeline, the first Java conference in 1996 had over 6,000 attendees.
The IEEE reported in 2015 that Java was the most popular programming code followed by C in a close second place. There are 48 different programming languages.
This is the list of the top ten programming codes, from the IEEE, in the order of their popularity:
The immense popularity of the Java programming code comes from its unique characteristics, which include:
- Java is a general-purpose programming language.
- The code is class-based and object oriented.
- Java is independent of the platform it runs on and architecturally neutral.
- Java runs on a Java Virtual Machine and works equally as well on Windows, Linux, or Apple operating systems. This is why Java is a Write Once Run Anywhere (WORA) computer language.
- The code is portable, dynamic, and easily distributed.
- Java runs in a multi-threaded fashion.
By 2016, the Java programming language became one of the most popular in the world with an estimated 9 million Java developers globally. About every two years, Oracle issues a version upgrade of the Java software. The current version in June 2016 is Java 8.
There are four editions of Java, which are Java card, the micro edition, the standard edition, and the enterprise edition. Java card works with smartcards. The micro edition works in environments that have limited resources. The standard edition works on workstations and the enterprise edition is for large distributed environments and the Internet.
Java runs on everything including smart phones, laptops, game consoles, workstations, and super computers.
Java Developer Jobs in the UK
A Java developer in the UK can easily find a good position. Having skills writing Java code is a talent in high demand, whether a programmer is at the junior, senior, or graduate level.
Currently, there are about 3,600 open positions in the UK for Java developers. Many talented foreign workers that have Java development skills are able to get a work permit and sponsorship for a position with a company located in the UK.
Quite a few skilled Java developers come from India and China to find good jobs in the UK. Americans also frequently get work permits when they have these specialized Java software developer skills and wish to work in the UK. JobsEngine has many listings for Java developers.
Java Developer Job Description
Workable has a nice template for creating a job posting about a Java developer position, which shows the basic job requirements, which include:
Job Opening for Java Developer
This position for a Java Developer requires a programmer with experience creating scalable, high-performance, enterprise software applications. The Java Developer will work with a software development team to build mission-critical apps using Java and Java EE. The Java Developer will participate in the complete lifecycle of software development that begins with the conceptual design and ends with robust testing.
- Design and then develop mission critical applications for high-volume usage with excellent performance metrics and high availability.
- Participate in the entire lifecycle of software development.
- Create code with a good design that tests well and runs efficiently.
- Make sure the code meets all required specifications.
- Work on improved releases of software applications.
The interview questions for a Java developer come from the job requirements.
- The education level required is a minimum of a Bachelor of Science in Computer Science or Software Engineering. Having a Master’s of Science is preferred.
- Significant experience in software development and specifically Java development projects.
- Extensive experience working with Java and the Java EE software platform, including class-loading, management of memory usage, and transactions.
- Familiarity with object-oriented software design parameters.
- Deep knowledge of relational database software, SQL, JPA2, and Hibernate.
- Experience using the Spring framework.
- Experience in web development using JSF, Wicket, GWT, and Spring MVC.
- Knowledge of test-driven development protocols.
Some begin a career as a Java developer while still attending school as a part time trainee, working as an intern. Anyone that has an interest in improving the functions of Java is welcome to participate in Oracle’s Java Community Process (JCP). The JCP makes recommendations and works to improve Java.
What Is the Salary for a Java Developer in the UK?
Payscale reports that the entry-level for a Java developer trainee is around £23,833 annually. An average salary for an experienced Java developer is £34,954 annually. Senior Java developers earn up to £57,064 per year on average across the UK. Java programmers who also have programming skills in Agile and C# command higher salaries.
Working in London pays the best. Senior Java programmers in London can earn up to £66,740 annually. In Manchester, the salary for Senior Java programmers maxes out at £46,369 per year. In Glasgow, the maximum salary for Senior Java programmers is £48,165. The maximum pay in Belfast is £40,610 annually and in Leeds, it is £47,490 per year. Salaries for Java developers in Cardiff, Edinburgh, Birmingham, Scotland, Northern Ireland (£58,579), and Wales are lower than those found in London.
The Future for Java Developers
Infoworld reported in January 2015 that there are around 16,000 open positions in America for Java developers, making it a hot job market in the USA. Unemployment for software developers in the United States is at 2.6%. This figure is less than half of the unemployment rate for other types of work in America, which was 6.1% during 2015.
The U.S. Bureau of Labor estimates that job growth over the next ten years for software developers will be 17% in America. This will add 186,800 new jobs in the USA over the next decade.
Gaining experience in Java development in the UK is a transferrable skill that is in high demand in most countries. Many countries encourage the migration of skilled Java programmers and make it easy for foreigners to get a work permit.
Java developers who are skilled can count on finding a good job in the UK. The positions are available and pay very competitive salaries. Senior Java developers also get benefits on top of the annual salary that can be as much as an extra £10,000 per year.
Students who have an interest in computer programming will find great jobs waiting for them when they graduate from school if they study Java. The high demand for Java developers does not show any sign of decreasing any time during the next decade.