What is the difference between "instantiated" and "initialized"?
To initialize something is to set it to its initial value. To instantiate something is to create an instance of it. Often this is the more or less same thing. This: SqlConnection conn = new SqlConnection(); instantiates a SqlConnection object, and initializes the conn variable by setting it to the that instance
Java: define terms initialization, declaration and assignment
initialization: to initialize a variable. It can be done at the time of declaration. assignment: to assign value to a variable. It can be done anywhere, only once with the final-identifier. declaration: to declare value to a variable. [update, trying to understand the topic with lambda calc]
initialization - Initializing variables in C - Stack Overflow
For pointers, always initialize them to some default, particularly NULL, even if they are to be used later, they are dangerous when uninitialized. Also it is recommended to build your code with the highest level of warnings that your compiler supports, it helps to identify bad practices and potential errors.
How do I declare and initialize an array in Java? - Stack Overflow
2009年7月29日 · Initialize Array: int[] arr = new int[10]; 10 represents the number of elements allowed in the array. Declare Multidimensional Array: int[][] arr; Initialize Multidimensional Array: int[][] arr = new int[10][17]; 10 rows and 17 columns and 170 elements because 10 times 17 is 170. Initializing an array means specifying the size of it.
java - Difference between initializing a class and instantiating an ...
2013年2月25日 · You explained very well the difference between initializing a variable, instantiating an object and declaring a variable. However Class initialization is something different. It loads the class into memory (the methods, initiates the static fields) and instantiates an object of type Class. Yes, probably arnold_palmer meant "initialize a variable"
c# - Initialize() vs Constructor() method, proper usage on object ...
2014年10月13日 · A constructor should initialize an object in a way that it's in a usable state. A constructor should only initialize an object, not perform heavy work. A constructor should not directly or indirectly call virtual members or external code. So in most cases an Initialize method shouldn't be required.
java - Initialising mock objects - Mockito - Stack Overflow
There are many ways to initialize a mock object using MockIto. What is best way among these ? 1. public class SampleBaseTestCase { @Before public void initMocks() { MockitoAnnotations.initMocks(this); } @RunWith(MockitoJUnitRunner.class) mock(XXX.class); suggest me if there are any other ways better than these...
JavaFX FXML controller - constructor vs initialize method
2016年1月14日 · And the note of the docs why the simple way of using @FXML public void initialize() works: NOTE This interface has been superseded by automatic injection of location and resources properties into the controller. FXMLLoader will now automatically call any suitably annotated no-arg initialize() method defined by the controller.
What does initialize_main (&argc, &argv) do? - Stack Overflow
2013年10月9日 · The code inside initialize_main on VMS, allows the basic unix style commands to support output redirection, such as ls and . OpenVMS later added a command called pipe which allows redirection to work via any command. You can view the source code for initialize_main on VMS here: Link
How to initialize array to 0 in C? - Stack Overflow
2016年5月10日 · {0}; works fine, C99 [$6.7.8/21] If there are fewer initializers in a brace-enclosed list than there are elements or members of an aggregate, or fewer characters in a string literal used to initialize an array of known size than there are elements in the array, the remainder of the aggregate shall be initialized implicitly the same as objects ...