12. Different scopes for access modifiers

 PackageTest.po;//Student Class Public classStudent {//Properties    PrivateString name;//name//set the Age property to modify different access modifiers, respectively    /*public int age;    int age; protected int age;*/    Private intAge//Age    Private DoubleWeight//Weight//Non-parametric construction method     PublicStudent () {//assign a value to an attribute when constructing a learner using the parameterless construction method         This. name= "Anonymous";  This. age=18;  This. weight=50; }    //Construction Method Overloading: Method with parameter construction     PublicStudent (String name,intAgeDoubleweight) {         This. Name =name;  This. Weight =weight; if(age<18 | | age>30) {System.out.println ("* * * Enter the age of:" +age+ ", the age is not legal, will reset!***");  This. age=18; }Else{             This. Age =Age ; }    }     PublicString GetName () {returnname; }     Public voidsetName (String name) { This. Name =name; }     Public intGetage () {returnAge ; }     Public voidSetage (intAge ) {        if(age<18 | | age>30) {System.out.println ("* * * Enter the age of:" +age+ ", the age is not legal, will reset!***"); return; }         This. Age =Age ; }     Public Doublegetweight () {returnweight; }     Public voidSetweight (Doubleweight) {         This. Weight =weight; }    //Method//set Study () individually to decorate with different access modifiers//private void Study () {//Void Study () {//protected Void Study () {     Public voidStudy () {SYSTEM.OUT.PRINTLN (name+ "said: Good study, day up!" "); }}

 PackageTest.oop.demo;Importtest.po.Student; Public classteststudent {//to test different scopes for different access modifiers     Public Static voidMain (string[] args) {Student Student=NewStudent (); //Scope of methods or properties that test different access modifiers        /*Student.study (); Student.age;*/    }}

12. Different scopes for access modifiers