Verification of member method and member variable access rights

Package Com.jaovo;/** *_1_ member Variable access rights verification * Public Private protected default (permissions) * Self-package own class accessible Access to accessible * own packages other classes can access non-accessible access to accessible * Other classes can access non-accessible inaccessible Ask inaccessible * Own package other classes have an inheritance relationship accessible inaccessible accessible * Other classes have an inheritance relationship accessible inaccessible accessible *-------- -------------------------------------------------------------------*_2_ member Method access permission * Public Priva       TE protected defaults (default permissions) * Self-package class can access accessible access accessible * Own package other classes can access inaccessible          Accessible * Other classes can access the other class can access non-accessible inaccessible * own package other classes have an inheritance relationship can access inaccessible accessible Classes that can access * Other packages have an inheritance relationship that can be accessed not accessible accessible*/import Cn.jaovo.d;import cn.jaovo.e;//Public class chengyuan{//Public class Chengyuan extends c{//Public class Chengyuan extends d{ Public classChengyuan extends e{ Public Static voidMain (string[] args) {//permission access for a member variable    /*1 b b = new B ();//own Bag other class System.out.println (B.I1);        System.out.println (B.I2);        System.out.println (B.I3);//i3 can access the private System.out.println (B.I4) in B; */    /*2 Chengyuan ch = new Chengyuan ();//self-pack own class System.out.println (CH.I1);        System.out.println (CH.I2);        System.out.println (CH.I3);        System.out.println (CH.I4); */    /*3 d = new D ();//Other Package class System.out.println (D.I1); System.out.println (D.I2);//i2 is not public in D; it cannot be accessed from an external package System.out.println (D.I3);//i3 can access private syste in D M.out.println (D.I4);//i4 can access the protected in D*/    /*4 Chengyuan ch = new Chengyuan ();//own package other classes have inheritance relationship Chengyuan extends C System.out.println (CH.I1);        System.out.println (CH.I2);        System.out.println (CH.I3);//i3 can access System.out.println (CH.I4) in B; */    /*5 Chengyuan ch = new Chengyuan ();//Other packages class has an inheritance relationship Chengyuan extends D System.out.println (CH.I1); System.out.println (CH.I2);//i2 is not public in D; it cannot be accessed from an external package System.out.println (CH.I3);//i3 can access private Syst in D        Em.out.println (CH.I4); *///======================================================    //two access rights for member methods        /*1 Chengyuan ch = new Chengyuan ();//self-pack own class System.out.println (CH.M1 ());        System.out.println (ch.m2 ());        System.out.println (CH.M3 ());           System.out.println (CH.M4 ()); */        /*2 b b = new B ();//Bag Other class System.out.println (B.M1 ());        System.out.println (b.m2 ());        System.out.println (B.M3 ());//m3 () can access the private System.out.println (B.M4 ()) in B; */        /*3 E e = new E ();//Other Package Class System.out.println (E.M1 ()); System.out.println (e.m2 ());//m2 is not public in E, it cannot be accessed from an external package System.out.println (E.M3 ());//m3 can access private Sy in E Stem.out.println (E.M4 ()); M4 () can access the protected in E*/        /*4 C = new C ();//own package other classes have inheritance relationship Chengyuan extends C System.out.println (C.M1 ());        System.out.println (c.m2 ());           System.out.println (C.M3 ());//m3 () can access System.out.println (C.M4 ()) in C; */        //5Chengyuan ch =NewChengyuan (); System. out. println (CH.M1 ()); System. out. println (Ch.m2 ());//symbol not foundSystem. out. println (Ch.m3 ());//symbol not foundSystem. out. println (CH.M4 ()); }}classb{//1 member variables     Public intI1 = -; intI2 = $; Private inti3 = -; protected intI4 = -; //2 Member Methods     Public intM1 () {return 1;} intM2 () {return 1;} Private intM3 () {return 1;} protected intM4 () {return 1;}}classc{//1 member variables     Public intI1 = -; intI2 = $; Private inti3 = -; protected intI4 = -; //2 Member Methods     Public intM1 () {return 1;} intM2 () {return 1;} Private intM3 () {return 1;} protected intM4 () {return 1;}}//========================================================//d.class files and e.class files in the CN package, in order to conveniently put them herePackage Cn.jaovo; Public classd{//1 member variables     Public intI1 = -; intI2 = $; Private inti3 = -; protected intI4 = -; //2 Member Methods     Public intM1 () {return 1;} intM2 () {return 1;} Private intM3 () {return 1;} protected intM4 () {return 1;}}//-------Package Cn.jaovo; Public classe{//1 member variables     Public intI1 = -; intI2 = $; Private inti3 = -; protected intI4 = -; //2 Member Methods     Public intM1 () {return 1;} intM2 () {return 1;} Private intM3 () {return 1;} protected intM4 () {return 1;}}

Verification of member method and member variable access rights