Last Updated on by ICT Byte
Types of Constructor
- Default Constructor
- Doesn’t have any parameter
- Example
Class rectangle{
rectangle(){
System.out.println(“Default Constructor”);
- No argument constructor
- Parameterized Constructor
- Has parameter
- When object is initialized, parameters are taken
- Example
Class rectangle{
Int length, breadth;
rectangle(int l, int b){
length=l;
breadth=b;
}
int area(){
Destructor
- There is no destructor in java as of C++
- There is automatic garbage collector – it frees the dynamically allocated memory when there is no use
Finalize() Methods
- Works like destructor
- Opposite of constructor
- Finalize method is used – for removing object
Chain of Constructor
- Process of calling constructor from another constructor
- Can be done in two ways
- Within same class: Using this() keyword
- From base class : Using super() keyword
- It goes with inheritance
