Constructors (building blocks of code)

1 /*2 when an object is established, the corresponding constructor is called3 4 functions of constructors: can be used for initialization of objects5 */6 /*7 Building Code Blocks8 */9 Ten //Target Construction code block location change whether the object (Yes) constructor can be overloaded each time it executes One /* A Execution Order: Object creation--class loaded--static loading (member functions, variables)--constructors--building code blocks when calling methods - */ - classpersion the { -     Private intAge ; -     PrivateString name; -  +      -  +      Public Static voidCry () A     { atSystem.out.println ("Cry ..."); -     } -  - persion () -     { -System.out.println ("name=" +name+ "age=" +Age ); in     } -Persion (String name,intAge ) to     { +System.out.println ("name=" +name+ "age=" +Age ); -     } the persion (String name) *     { $System.out.println ("name=" +name+ "age=" +Age );Panax Notoginseng     } -     { theCry ();//constructing the location of a code block does not affect each initialization of the object +     } A } the  + classPersiondemo - { $      Public Static voidMain (String []args) $     { -Persion P1 =Newpersion (); -  thepersion P2 =NewPersion ("Dave", 15); -     }Wuyi}

Constructors (building blocks of code)