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Java example source code file (ProtectedMemberAccess3.java)

This example Java source code file (ProtectedMemberAccess3.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

inner, object, protectedmemberaccess3

The ProtectedMemberAccess3.java Java example source code

/*
 * @test  /nodynamiccopyright/
 * @bug 4319507 4785453
 * @summary Verify correct implementation of JLS2e 6.6.2.1
 * @author maddox
 *
 * @compile/fail/ref=ProtectedMemberAccess3.out -XDdiags=-simpleNames -XDdiagsFormat=%b:%l:%_%m ProtectedMemberAccess3.java
 */

// 46 errors expected.

import pkg.SuperClass;

class ProtectedMemberAccess3 {

  // Since this class is not a subclass of the class in which the
  // protected members are declared, all of the accesses are illegal.

  pkg.SuperClass x = new pkg.SuperClass();

  static pkg.SuperClass sx = new pkg.SuperClass();

  class Inner {

    int i = x.pi;                               // illegal
    int j = x.spi;                              // illegal

    int n = sx.pi;                              // illegal
    int m = sx.spi;                             // illegal

    //static int sn = sx.pi;
    //static int sm = sx.spi;

    int w = x.pm();                             // illegal
    int y = x.spm();                            // illegal

    int u = sx.pm();                            // illegal
    int v = sx.spm();                           // illegal

    pkg.SuperClass.pC  obj1;                    // illegal
    pkg.SuperClass.spC obj2;                    // illegal

    pkg.SuperClass.pI  obj3;                    // illegal
    pkg.SuperClass.spI obj4;                    // illegal

    Object o1 = (pkg.SuperClass.pC) null;       // illegal
    Object o2 = (pkg.SuperClass.spC) null;      // illegal

    Object o3 = (pkg.SuperClass.pI) null;       // illegal
    Object o4 = (pkg.SuperClass.spI) null;      // illegal

    class C1 extends pkg.SuperClass.pC {}       // illegal
    class C2 extends pkg.SuperClass.spC {}      // illegal

    //interface I1 extends pkg.SuperClass.pI {}
    //interface I2 extends pkg.SuperClass.spI {}

    // Not allowed in inner classes.
    // static { ... }

    void m() {

      pkg.SuperClass lx = new pkg.SuperClass();

      x.pi  = 1;                                // illegal
      x.spi = 2;                                // illegal

      sx.pi  = 1;                               // illegal
      sx.spi = 2;                               // illegal

      lx.pi  = 1;                               // illegal
      lx.spi = 2;                               // illegal

      int t = x.pm();                           // illegal
      int y = x.spm();                          // illegal

      int u = sx.pm();                          // illegal
      int v = sx.spm();                         // illegal

      int w = lx.pm();                          // illegal
      int z = lx.spm();                         // illegal

      int i = x.pi;                             // illegal
      int j = x.spi;                            // illegal

      int n = sx.pi;                            // illegal
      int m = sx.spi;                           // illegal

      int k = lx.pi;                            // illegal
      int l = lx.spi;                           // illegal

      pkg.SuperClass.pC  obj1;                  // illegal
      pkg.SuperClass.spC obj2;                  // illegal

      pkg.SuperClass.pI  obj3;                  // illegal
      pkg.SuperClass.spI obj4;                  // illegal

      Object o1 = (pkg.SuperClass.pC) null;     // illegal
      Object o2 = (pkg.SuperClass.spC) null;    // illegal

      Object o3 = (pkg.SuperClass.pI) null;     // illegal
      Object o4 = (pkg.SuperClass.spI) null;    // illegal

      class C1 extends pkg.SuperClass.pC {}     // illegal
      class C2 extends pkg.SuperClass.spC {}    // illegal

      //interface I1 extends pkg.SuperClass.pI {}
      //interface I2 extends pkg.SuperClass.spI {}

    }

  }

}

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