Very commonly asked Java Interview Questions- Set 2 In this second article, some of today's most frequently asked Java Interview Questions is discussed, to get you the edge over your interviews. Java is among the most widely used and popular programming language and technology. It was first released in the early 1990s and gained popularity because of its simplicity, speed, and support for a variety of platforms. Today Java can be used for any kind of web application. However, if you want to excel in an interview for a Java Job, you must be familiar with the language and its features. Keep reading to find out what you should know and how to ace your interview for a Java Job.
Java has a number of built-in features and functionality, which make it very easy to write code. One of its many benefits is that it allows you to use functions and expressions that cannot be found in C/C++. Another perk of Java is that you don't need to worry about overriding static methods since they are abstract. Overriding of static methods is considered a poor practice in Java development since you can easily find the method that you are looking for by searching it from the source code. So how do you effectively answer Core Java Interview Questions and land your dream job?
One of the most common and most frequently asked Java Interview Questions is about overrides static methods. You may have seen a program that uses a Java script to perform an expensive operation. After the program is written to execute the operation, the operating system will automatically replace the Java script with another that performs the operation for free. In this scenario, instead of writing an additional function or class to perform the expensive operation, you could simply override the static method. To know more about programming, visit this website at http://programminggeeks.wikia.com/wiki/Programming_Wiki.
Overriding is very useful if you need to create a class that will act as a wrapper over another object. For example, instead of writing a complex inner loop to perform processing of large number of numbers, you could instead create a Java class that contains a main method and a static variable to hold the work for the main method. The main method would call the static variable to perform the processing of the work. Here's where overriding comes into play again.
Core Java Interview Questions provides several different ways to override static methods. If you really must use one of them, there are several places you can look. One way is to check out the official Java documentation. Here you'll find a list of static methods, their meaning, and their implications in the Java programming language. Another solution is to browse through the Java source code. This will show you various statements and expressions used throughout the Java program.
One Java Interview Question that you might encounter is 'You said that static typing makes your code more readable? How does static typing accomplish this?' The answer is that while a static keyword is used throughout the Java code, it doesn't actually perform any transformation on the original source code. All of these different static methods and their meaning are mentioned above, and you should be able to understand them from here.
