Static variable are loaded when classloader brings the class to the JVM. It is not necessary that an object has to be created. Static variables will be allocated memory space when they have been loaded. The code
Static initialization blocks are executed when the class is loaded, and you can initialize static variables in those blocks. You can read more about the concept here.You are given a class Solution with a main method. Complete the given code so that it outputs the area of a parallelogram ...
When you are preparing to interview for a Java programming job, it’s important to consider the questions you’ll be asked. These interview questions can vary based on many factors, including company type, role level, and how long the company you interview with has been in business. How can...
Of course, but in an interface all variables are public, static and final by default – they must be constants. 7) How to access variables from an interface? Once a set of variables have been defined using the statement interface, they can be accessed like any other static properties with ...
As a professed Java programmer, there are certain expectations from you during job interviews. Here are the top 10 Java interview questions you should be ready to answer.
Java’s final keyword can be used with variables to make sure that it can be assigned only once. However the state of the variable can be changed, for example, we can assign a final variable to an object only once but the object variables can change later on. ...
And for more experienced interview candidates (5 years experience):Are methods and variables named descriptively and succinctly? Are edge conditions (e.g. null input) checked for?If they don’t write any of this out, they should at least mention it verbally....
An instance variable is bounded to its object itself. These variables are declared within a class, but outside a method. Every object of that class will create it’s own copy of the variable while using it. Thus, any changes made to the variable won’t reflect in any other instances of...
2. Questions on the Scope of Variables and Methods 2.1. What are actual parameters and formal parameters? The parameters defined at the time of method declaration as part of the method signature are known asformal parameters. The parameters that actually hold some value and are passed to the ...
Looks like there is mistake in answer for question 11final keyword can be used with class variables to make them immutablefinal keyword can used for variables to make variables can’t be re-assigned . it won’t make variables immutable, immutable means when we can’t change the object b...