Initialization and Cleaning 1. In Java use constructor to ensure that the object is initialized, constructed the name and class name, and the method of programming style is not suitable for constructor, because constructor must be It is exactly the same. The constructor can also have parameters, allowing you to provide parameters to the initialization of the object. The default constructor is without parameters. When you define a constructor, you will not have a default constructor. The constructor is a special method that does not return a value. This is the difference between the essence of Void, and the method of void does not return, this is determined by you, you can return the value, but the constructor does not return, you don't choose. The New Expression will return this object's Reference, but the constructor itself does not return anything. Public Class TestConsctuctor {TestConstructor (String Argument) {} // Constructor with parameters} 2. Method / Reload is a very important method in object-oriented development. Class test () {} // construct method testreeload (string argument) {} // Reload ConstructionMeethod