To explicitly call the superclass constructor from the subclass constructor, we use super() . It’s a special form of the super keyword. super() can be used only inside the subclass constructor and must be the first statement.
Read moreHow do you call a parameterized constructor from a default constructor?
Use this(); in the first line of the parametrized constructor and it will call your default constructor. Make sure you have default constructor as compiler will not provide one if you declare a parametrized constructor.
Read moreHow do you call a parameterized constructor from another class?
When we want to call one constructor from another constructor within the same class, we use the this keyword . An expression that uses the this keyword must be the first line of the constructor. The order doesn’t matter in the constructor chaining. It must have at least one constructor that doesn’t use the this keyword.
Read moreHow do you call constructor from another class?
To call one constructor from another constructor is called constructor chaining in java. This process can be implemented in two ways: Using this() keyword to call the current class constructor within the “same class” . Using super() keyword to call the superclass constructor from the “base class”.
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