Access « private « Java Class Q&A

1. Avoid accessing private properties directly from the same class    stackoverflow.com

This is a very simple example where accessing directly could be dangerous

class Something{

      public static final int MAX=123;

      private int prop; ...

2. can we access the private folder    coderanch.com

3. Access to private elements of the outer class    coderanch.com

Did you mean to say something else? It sounds to me like your question is exactly the same as the statement you open with. Let me perhaps answer the question without understanding it: by definition, all the code inside "class { ... }" can access all variables defined inside that class. This means that all code in an inner class can ...

4. Accessing private data in AWTEvent class    coderanch.com

5. accessing private member/method from a diff class.    coderanch.com

Consider the class defn below.. class Beta { void accessMethod() { Alpha a = new Alpha(); a.iamprivate = 10; // illegal a.privateMethod(); // illegal } } 'iamprivate' and 'privateMethod' are both declared as private in Alpha. I fail to understand how the 2 stmt in accessMethod are illegal despite the fact that they belong to object 'a'. TIA.

6. "private" access    coderanch.com

class A { private String name; ... public A(String name) {...} public A add(A a) { return new A(name + a.name); } } class Test { void test() { A a = new A("john"); A a1 = new A("stve"); A a2 = new A("Loi"); A a3 = a1.add(a2); System.out.println("A.name = " + a.name); // marked line } } 1. Everyone knows ...

7. firstName has private access in Person    coderanch.com

8. Why can't this program access the private class    forums.oracle.com

Here you go, this is what I get when I try to execute the program. The application window will come up but all I get is the gray block. Thanks for the help and advise. Dan Exception in thread "main" java.lang.Error: Do not use MortgageGUIv4_1.add() use MortgageGUIv4_1.getContentPane().add() instead at javax.swing.JFrame.createRootPaneException(JFrame.java:446) at javax.swing.JFrame.addImpl(JFrame.java:472) at java.awt.Container.add(Container.java:298) at MortgageGUIv4_1.(MortgageGUIv4_1.java:106) at MortgageGUIv4_1.main(MortgageGUIv4_1.java:20)

9. Accessing a Private Class    forums.oracle.com

10. how to access a private method from if and external class in java    forums.oracle.com

First let me say there are probably very few good reasons to do this. It's more likely that you need to refactor your code into a better design. Having said that, check out the API on the "Class" class. Specifically "public Method[] getDeclaredMethods() throws SecurityException" which says the following: **** Returns an array of Method objects reflecting all the methods declared ...

11. Private access and setting values    forums.oracle.com

I'm trying to run tests using JUnit. I started by picking the getRepeatCount method. I want to plug a value into the repeatCount field but it cannot find the symbol where instance is defined to be a new Alarm. It sees the first Alarm in that line - doesnt flag it. So how do I assign a value to this field ...

12. Accessing private methods from another class    forums.oracle.com

Hi, just wondering if anyone can help me? Is it possible to access a private method from another class? Say I have 2 classes, public class calender and public class date the date class is a static variable within the calender class, the date class contains private getter and setter methods to change the day, month and year. Is it possible ...

13. Runtime access to private compiled methods - Is it normal?    forums.oracle.com

Hmmm, that does seem strange. Reading the JLS entry on "Runtime Evaluation of Method Invocation" here: [http://java.sun.com/docs/books/jls/third_edition/html/expressions.html#15.12.4.3] seems to indicate that your expectations would be correct: An implementation of the Java programming language must insure, as part of linkage, that the method m still exists in the type T. ... The implementation must also insure, during linkage, that the type T ...

14. access methods from a private    forums.oracle.com

15. private access    forums.oracle.com

16. Accessing private methods    forums.oracle.com