Interview Tips for a Java Developer
Are you a Java developer or are you looking to break into the exciting field of IT? We’ve had overwhelming responses the past couple of weeks from people like you looking to gain highly effective knowledge and preparation for interviews regarding the IT industry, specifically, Java developing.
Whether you are an experienced Java Developer or one in the making, INSPYR Solutions has the information you need to blow the interviewee out of the water and not to mention many Java Developer positions available with prominent companies.
The first thing you want to consider when going on any interview is making sure you brushed up on your research skills and you know what is trending in your industry. Make sure you are up to date on news and buzz surrounding your profession so that you can show the interviewee that you are not only good at what you do, but also aware of the market trends and have a passion for it outside of work.
Also, walk into that interview with confidence. By doing the research above, you will feel more comfortable and ready to answer any questions that will be thrown your way. Dress the part, look the part and make sure your body language and how you talk reflect this confidence.
To help you get a good idea on some of the questions asked in a Java Developer interview, below are some of the top questions an interviewee may ask. So take a look and study the answers. Don’t be afraid to throw your own creative and unique answers to showcase your awesome personality as well.
Take a look below to refresh your skills and knowledge on a Java Developer job opening:
Q- What’s the difference between an interface and an abstract class?
A- An abstract class may contain code in method bodies, which is not allowed in an interface. With abstract classes, you have to inherit your class from it and Java does not allow multiple inheritance. On the other hand, you can implement multiple interfaces in your class.
Q- Explain the usage of the keyword transient?
A- This keyword indicates that the value of this member variable does not have to be serialized with the object. When the class will be de-serialized, this variable will be initialized with a default value of its data type (i.e. zero for integers).
Q- How do you know if an explicit object casting is needed?
A- If you assign a superclass object to a variable of a subclass’s data type, you need to do explicit casting.
Q- How could Java classes direct program messages to the system console, but error messages, say to a file?
A- The class System has a variable out that represents the standard output, and the variable err that represents the standard error device. By default, they both point at the system console.
Q. Why would you use a synchronized block vs. synchronized method?
A- Synchronized blocks place locks for shorter periods than synchronized methods.
Q- How can you force garbage collection?
A- You can’t force GC, but could request it by calling System.gc(). JVM does not guarantee that GC will be started immediately.
Study these questions and answers. Don’t be afraid to throw in your own creative and unique answers to showcase your awesome personality as well. By being prepared for brush up questions in an interview, you’ll be able to whip up the best answer without stumbling around your memory for a quick answer.
Remember, preparation is key to success!