0
You cannot invoke a constructor explicitly. It will get invoked implicitly when you call the new keyword on the class to create an object of the class.
Ex:
private ClassExample obj = new ClassExample();
here this new keyword usage on the ClassExample class will invoke the constructor of this class and create an object of that class.
What else can I help you with?
When the constructor is called how many times will it be copied?
constructor is called every times when we create object of class using new keywordand constructor can not be copied (vinayak shendre)
What is concession constructor?
Constructors are basically used to evoke methods of a class creating its object..and as far as i know there is no constructor called concession constructor..
When constructor function are called in java?
Constructors are called during object creation.
Why you use constructor instead of function?
For every class an empty constructor will be defined automatically by default unless you provide a constructor definition manually. Constructor in a class can be used to initialize variables or perfrom some basic functionallity whenever an object is created.
What is mean constructor in java?
A parameterized constructor in java is just a constructor which take some kind of parameter (variable) when is invoked. For example. class MyClass { //this is a normal constructor public MyClass(){ //do something } //this is a parameterized constructor public MyClass(int var){ //do something } //this is another parameterized constructor public MyClass(String var, Integer var2){ //do something } }
When is the function constructor called?
A constructor is called when a new object is created.
When the constructor is called how many times will it be copied?
constructor is called every times when we create object of class using new keywordand constructor can not be copied (vinayak shendre)
What is concession constructor?
Constructors are basically used to evoke methods of a class creating its object..and as far as i know there is no constructor called concession constructor..
What is first call in struts2 default constructor or validate method?
Default Constructor will be called first . If you override Validate method , then validate method will be called .
When constructor function are called in java?
Constructors are called during object creation.
Why you use constructor instead of function?
For every class an empty constructor will be defined automatically by default unless you provide a constructor definition manually. Constructor in a class can be used to initialize variables or perfrom some basic functionallity whenever an object is created.
What is mean constructor in java?
A parameterized constructor in java is just a constructor which take some kind of parameter (variable) when is invoked. For example. class MyClass { //this is a normal constructor public MyClass(){ //do something } //this is a parameterized constructor public MyClass(int var){ //do something } //this is another parameterized constructor public MyClass(String var, Integer var2){ //do something } }
Default constructor in java?
If you don't type a constructor into your class code, a default constructor will be automatically generated by the compiler. The default constructor is ALWAYS a no-arg constructor. (Obviously the compiler has no clue what all arguments you might want for your class. So it takes the safe way out with a no argument constructor) A no-arg constructor is not necessarily the default (i.e., compiler-supplied) constructor, although the default constructor is always a no-arg constructor. The default constructor is the one the compiler provides! While the default constructor is always a no-arg constructor, you're free to put in your own no-arg constructor.
What is the name of the class that create object?
I think what you know is called constructor.
What is parameter constructor?
C++ permits us to achieve this objects bt passing argument to the constructor function when the object are created . The constructor that can take arguments are called parametrized constructors Example:- class abc { int m,n; public: abc(int x,int y); //paramererise constructor ................ ................. }; abc::abc(int x,int y) { m=x;n=y; }
What is an empty constructor?
An empty constructor takes no arguments and calls the default constructor
What is the difference between the constructor to and destructor?
Functions and Constructors are similar in many ways. They can have arguments, they can have any amount of code, they can access the class's variables etc. the only difference is that a method in java needs to mandatorily have a return type but a Constructor in java cannot have a return type. It always creates and returns an object of the class for which it is the constructor. You cannot return a value from a constructor explicitly and if you try to do that, the compiler will give an error. The system knows that the purpose of the constructor is to create an object of the class and it will do the same irrespective of whether you declare a return type or not.
