No.
No, Java only allows a method to be defined within a class, not within another method.
No, Java only allows a method to be defined within a class, not within another method.
Constructor is a special block of code similar to the method that is used to initialize the state of objects. If you do not define a constructor in a class, Java compiler automatically put a default constructor in the class.
No. Java does not support copy constructor
no you can have a class with no public methods and even with a a private constructor public class Example { //constructor private Example(){ } }
No, Java only allows a method to be defined within a class, not within another method.
No, Java only allows a method to be defined within a class, not within another method.
how many constructer can be defined in class in overloading of java programming
Constructor is a special block of code similar to the method that is used to initialize the state of objects. If you do not define a constructor in a class, Java compiler automatically put a default constructor in the class.
Constructor is not an alternative to class. In Java, you create classes; the classes contain methods - including the constructor, which can be viewed as a special method. If you want to have a constructor, you need a class that surrounds it, so it's not one or the other.
this in java is a keyword that refers to the current object of the class. It is also used in constructor overloading when you want to invoke one constructor from another within the same class.
No. Java does not support copy constructor
no you can have a class with no public methods and even with a a private constructor public class Example { //constructor private Example(){ } }
No args means no arguments. Just like any regular method, a constructor can have zero or more arguments.No args means no arguments. Just like any regular method, a constructor can have zero or more arguments.No args means no arguments. Just like any regular method, a constructor can have zero or more arguments.No args means no arguments. Just like any regular method, a constructor can have zero or more arguments.
The constructor of a Java class is not an ordinary method. Its purpose is not to return any value. The purpose of the constructor is to instantiate the class which it does. Since, the purpose of a constructor is only to instantiate and initialize its class and not anything else, it does not have a return type. All it does is creates an object of that class.
In Java, a function is called a "method". In Java as well as other languages, a method is a function defined specifically for one class. In Java, this is the only way to define functions, therefore, all functions are methods.In Java, a function is called a "method". In Java as well as other languages, a method is a function defined specifically for one class. In Java, this is the only way to define functions, therefore, all functions are methods.In Java, a function is called a "method". In Java as well as other languages, a method is a function defined specifically for one class. In Java, this is the only way to define functions, therefore, all functions are methods.In Java, a function is called a "method". In Java as well as other languages, a method is a function defined specifically for one class. In Java, this is the only way to define functions, therefore, all functions are methods.
Return a value in the constructor is senseless, because a constructor is used to initialize a object instance and not to perform a task or a operation. When we call a constructor we used a sentence like this: MyClass var = new MyClass(); Then when we execute the above line the constructor return ('create') a new object of the type 'MyClass'. If this call could return an other type, for example an Integer, the constructor is considered a normal method, and if there are not more constructors a empty default constructor for MyClass is defined by the java compiler. public class MyClass{ // The java compiler will insert a real constructor here public Integer MyClass(){ //This isn't a constructor, only a simple method return new Integer(1); } }