1Constructor overloading in Java is a technique of having more than
2one constructor with different parameter lists.
3They are arranged in a way that each constructor performs a different task.
4They are differentiated by the compiler by the number
5of parameters in the list and their types.
6
7class Student5{
8 int id;
9 String name;
10 int age;
11
12 Student5(int i,String n){
13 id = i; //creating two arg constructor
14 name = n;
15 }
16
17 Student5(int i,String n,int a){
18 id = i;
19 name = n; //creating three arg constructor
20 age=a;
21 }
22
23 void display(){System.out.println(id+" "+name+" "+age);}
24 public static void main(String args[]){
25 Student5 s1 = new Student5(111,"Karan");
26 Student5 s2 = new Student5(222,"Aryan",25);
27 s1.display();
28 s2.display();
29 }
30}
31
1Yes, the constructors can be overloaded by
2changing the number of
3arguments accepted by the constructor
4or by changing the data type of
5the parameters
1class Point
2{
3public:
4 Point& operator++() { ... } // prefix
5 Point operator++(int) { ... } // postfix
6 friend Point& operator++(Point &p); // friend prefix
7 friend Point operator++(Point &p, int); // friend postfix
8 // in Microsoft Docs written "friend Point& operator++(Point &p, int);"
9};
10