Java class Constructor

The constructor is provided to ensure that the compiler automatically calls the constructor for initialization when an object is created.
Java uses a mechanism with the same constructor and class name to ensure that the compiler can know which method should be called.
The constructor improves code readability and reduces errors.
The constructor is a special method that does not return values.
If there is no constructor in our class, the compiler will automatically create a default constructor. It has no parameters. If we define the constructor in the class (no matter whether there is a parameter or not), the compiler will no longer automatically create the default constructor.
We can call the constructor In the constructor to reduce repeated code. In this case, we need to use the this keyword. This is a reference of the current object.
For example,
[Java]
Public class Person {
String name;
Int age;
Person (String n ){
This. name = n;
}
Person (String n, int ){
This (n );
This. age =;
}
}