
In laymans terms, what does 'static' mean in Java?
The static keyword can be used in several different ways in Java and in almost all cases it is a modifier which means the thing it is modifying is usable without an enclosing object instance. Java is an …
inheritance - What is an interface in Java? - Stack Overflow
Jan 10, 2021 · From oracle documentation page ( post Java 8 release) : In the Java programming language, an interface is a reference type, similar to a class, that can contain only constants, method …
What is the difference between declaration and definition in Java?
Jul 30, 2012 · The Java Language Specification specifies and uses the term "declaration" extensively, but it does not use "definition" except as a normal English word. My evidence is that the term …
java - What are classes, references, and objects? - Stack Overflow
Feb 10, 2012 · 53 I've been programming Java for 2 years now, and I have encountered a problem where I couldn't understand and differentiate class, reference, and an object. I am not sure if a class …
java - what is meaning of instance in programming? - Stack Overflow
Dec 9, 2021 · 6 Here is a pretty standard definition: An instance, in object-oriented programming (OOP), is a specific realization of any object. An object may be varied in a number of ways. Each realized …
java - What's the difference between primitive and reference types ...
@Eng.Fouad: passing an argument by reference is well defined in C. Understanding of these concepts [pointers, values, pass by reference] in C almost ensures understanding the difference between …
What is an instance variable in Java? - Stack Overflow
May 22, 2013 · My assignment is to make a program with an instance variable, a string, that should be input by the user. But I don't even know what an instance variable is. What is an instance variable? …
java - What is meant by immutable? - Stack Overflow
Nov 11, 2008 · Respect the above definition which could be checked by looking into the Sting.java source code. What are the advantages/disadvantages of the immutable objects? immutable types …
Java inner class and static nested class - Stack Overflow
Sep 16, 2008 · According to the Java documentation, there is a difference between an inner class and a static nested class -- static nested classes don't have references to their enclosing class and are …
java - What is a JavaBean exactly? - Stack Overflow
JavaBeans are Java classes which adhere to an extremely simple coding convention. All you have to do is to implement the java.io.Serializable interface - to save the state of an object use a public empty …