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This is when you overload the constructor so that there isn't just one way you can initialize the class object

Assume you have a class called Foo and you want two different constructors


Foo(int a, int b);

Foo(float a, float b);


using a method like this can make your classes more dynamic and you don't need to to write a new class to handle different types. Sorry for the lack of Java code, i program in C++ but it you can overload functions and constructors in C++ too.

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12y ago

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What is the function of this in java?

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.


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how many constructer can be defined in class in overloading of java programming


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When we are initializing our object with different internal state then we can use the constructor overloading.


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yes,because in constructor overloading constructor have same and different parameter list. In method overloading method have same name and different parameter list.


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The first thing to note about constructor overloading is that Java creates a no argument constructor for you if and only if you have not typed a constructor yourself. Every class has a constructor even abstract ones (default no argument constructor). Abstract constructors are always executed. To overload a constructor you can do the following: class Test { String name; Test(String n) { name = n; System.out.println("Constructing Test Object named: " + name); } } In the case above we are overloading the default no argument constructor with a constructor that takes a String parameter. You can write you own no argument constructor as follows: class Test { Test() { System.out.println("Constructing Test Object"); } } To override our own no argument constructor we do this: class Test { Test() { // our no argument constructor System.out.println("Constructing Test Object"); } String name; Test(String n) { // overloading our no argument constructor with this // constructor that take a String parameter name = n; System.out.println("Constructing Test Object named: " + name); } }


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Java does not support opperator overloading, so the answer to your question is: none.


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All Java programs would have a constructor... public class Test { public Test(){ ... } ..... } This is a constructor. Even if you dont code the constructor Java would automatically place a default constructor for compilation.


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Constructor is used to do something (written in constructor) immediately after object creation.


Differene betwee constructor overloading same as method overloading?

A constructor is just a special form of a method. You can overload constructors in the exact same way as you can overload any other method.


Discrbe breifly about Copy constructor overloading?

A copy constructor usually refers to a constructor which takes an object, and returns a copy of that object. I can think of no way to overload the constructor without changing its functionality.