Title Description

JAVA Everything is an object , To have an object, first take off the order ~, Ha ha ha , incorrect , yes new Objects , Use the construction method to get the object , But you know what ？ Constructor also supports overloading

Their thinking

The construction method is a special method , Follow the rules when making a statement ：

1. The method name of the constructor must be the same as the class name .
2. Constructor has no return type , It can't be defined as void, Do not declare method type before method name .
3. The main function of the construction method is to complete the initialization of the object , It can pass the parameters when defining the object to the object's domain .
4. A class can define multiple constructors , If no constructor is defined when defining the class , Then the compiling system will automatically insert a default constructor without parameters , This constructor does not execute any code .
5. Constructors can be overloaded , Number of parameters , type , The order .

Code details

package question;

import java