Types Of Constructor in Java

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 In Java, there are three types of constructors:

  1. Default Constructor: A default constructor is a constructor with no parameters defined. It is automatically created by the compiler if no constructor is defined in a class.

  2. Parameterized Constructor: A parameterized constructor is a constructor with parameters defined. It is used to initialize the values of instance variables of a class with the values passed as arguments while creating an object of that class.

  3. Copy Constructor: A copy constructor is a constructor that creates an object by copying the values of another object of the same class. It is used to create a new object with the same values as an existing object.

Here's an example of each type of constructor:

java with mohit
// Default Constructor
public class MyClass 
{
   public MyClass() 
{ 
// Constructor code here 
 } 
} 
// Parameterized Constructor 
public class MyClass
 { 
private int value;
public MyClass(int val) 
{
      value = val;
   }
}
// Copy Constructor 
public class MyClass 
{
   private int value; 
public MyClass(MyClass obj)
 {
      value = obj.value;
   }
}

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