Answer:
Constructor overloading means constructor having same name but different signature
Parameter of constructor are depend upon
Number of parameter
Type of parameter.
Sequence of parameter
When we create an object of an class the compiler determines which type of constructor is call by comparing its signature of constructor.
For example:
Following are the constructor overloading program in java
class abc // creating class
{
int r;
String name;
abc(int r1) // Constructor 1
{
r = r1;
System.out.println(r);
}
abc(String n1) // Constructor 2
{
name=n1;
System.out.println(name);
} }
class Main // main class
{
public static void main(String[] args) // main method
{
abc ob=new abc(1); // object 1
abc S2 = new abc("Sumit"); // object 2
}
}
Output:
1
Sumit
In this program, we have two constructors.
object 1 will call constructor 1 because the signature of constructor 1 is matched to the statement 1.
object 2 will call constructor 2 because the signature of constructor 2 is matched to the statement 2
