What is the difference between this() and super() in Java?

In Java, super() and this(), both are special keywords that are used to call the constructor.

this:

1. this() represents the current instance of a class
2. Used to call the default constructor of the same class
3. Used to access methods of the current class
4. Used for pointing the current class instance
5. Must be the first line of a block

super:

1. super() represents the current instance of a parent/base class
2. Used to call the default constructor of the parent/base class
3. Used to access methods of the base class
4. Used for pointing the superclass instance
5. Must be the first line of a block