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Is it possible to use Java Reflection to print out attributes of the parent class?

由 大兔子大兔子 提交于 2019-11-28 01:24:04
is it possible to use Java Reflection to print out the attributes of a parent class. Yes, you could do something like this: Class<?> parentClass = getClass().getSuperclass(); Field[] fields = parentClass.getDeclaredFields(); for (Field field : fields) { System.out.println("field: " + field.getName()); } Method[] methods = parentClass.getDeclaredMethods(); for (Method method : methods) { System.out.println("method: " + method.getName()); } Dilum Ranatunga Given an appropriately permissive security policy, it is possible to print out any class/instance's attributes using reflection. See How to

Parent(), faster alternative?

由 与世无争的帅哥 提交于 2019-11-27 21:29:38
I am working with a dashboard of divs and each div it has a tree of which the buttons are. Every time I have to know which the id of that div is so I am using parent() alot. Mostly I am doing $(this).parent().parent().parent() to find the ID of div so I can set variables to it. The app is based on the id's of each div. Is it consider slow to use parent() up to 3 times but pretty much on every function? Is there any other alternative? I am looking for something like benchmarks-style which shows what's faster. Here is an example of the tree: <div id="6179827893" class="dashdiv"> <div class=

Hudson build fail: Non-resolvable parent POM

由 ◇◆丶佛笑我妖孽 提交于 2019-11-27 18:12:52
问题 I used to work with Hudson on my project, and lately I had to move it to a new server. I configured it the exact same way it use to be (for all I can tell) but when I try to launch a build, it fails and I get the following error: Démarré par l'utilisateur anonymous Checking out http://[...]/trunk/MyProject/ear A .classpath A .project A target AU target/ear-1.0-SNAPSHOT.ear A target/application.xml A target/ear-1.0-SNAPSHOT A target/ear-1.0-SNAPSHOT/META-INF A target/ear-1.0-SNAPSHOT/META-INF

jQuery: How to get to a particular child of a parent?

由 守給你的承諾、 提交于 2019-11-27 17:19:18
To give a simplified example, I've got the following block repeated on the page lots of times (it's dynamically generated): <div class="box"> <div class="something1"></div> <div class="something2"> <a class="mylink">My link</a> </div> </div> When clicked, I can get to the parent of the link with: $(".mylink").click(function() { $(this).parents(".box").fadeOut("fast"); }); However... I need to get to the <div class="something1"> of that particular parent. Basically, can someone tell me how to refer to a higher-level sibling without being able to refer to it directly? Let's call it big brother.

Python importing a module from a parallel directory

由 假装没事ソ 提交于 2019-11-27 15:04:54
问题 How would I organize my python imports so that I can have a directory like this. project | \ | __init__.py | src | \ | __init__.py | classes.py | test \ __init__.py tests.py And then inside /project/test/tests.py be able to import classes.py I've got code looking like this in tests.py from .. src.classes import( scheduler db ) And am getting errors of SystemError: Parent module '' not loaded, cannot perform relative import Anyone know what to do? 回答1: Python adds the folder containing the

How to access to the parent object in c#

由 自古美人都是妖i 提交于 2019-11-27 12:47:50
问题 I have a "meter" class. One property of "meter" is another class called "production". I need to access to a property of meter class (power rating) from production class by reference . The powerRating is not known at the instantiation of Meter. How can I do that ? Thanks in advance public class Meter { private int _powerRating = 0; private Production _production; public Meter() { _production = new Production(); } } 回答1: Store a reference to the meter instance as a member in Production: public

jQuery select element in parent window

由 假如想象 提交于 2019-11-27 12:39:48
问题 Is there a way to select a DIV in the parent window using jQuery? For example: Main page contains this, <div id="testdiv"></div> Popup page has a form with some options and an 'Apply' button. When the user clicks apply it affects the style attribute on the main page. Something along the logic of, parent.$("#testdiv").attr("style", content from form); 回答1: Use the context-parameter $("#testdiv",parent.document) But if you really use a popup, you need to access opener instead of parent $("

Get other child that shares parent with the current view

由 こ雲淡風輕ζ 提交于 2019-11-27 12:23:08
问题 I'm creating a table in which each row contains text as well as a button. Now when that button is pressed I want to call an event that uses the value of the text next to the button. How can I access the content of that TextView? I can get the ViewParent of my button, which should be the row, but there's no method to access that views children. private OnClickListener updateButtonListener = new OnClickListener(){ public void onClick(View v) { ViewParent parent = v.getParent(); //Here I would

Change Parent url from iframe

由 三世轮回 提交于 2019-11-27 11:28:14
问题 Need help with a simple problem! which has the following criteria: 1) click on images link in iframe changes Parent page, click on another iframe image link changes Parent to another page (see below). It may sound simple but I'm being googled it for days now and looked over many forums. Code can be in html css or js, but please keep any answers simple as possible and post a full working example to work as I'm new to coding or recode the test site: http://www.howiepotter.com/parent.html 回答1:

Changing the child element's CSS when the parent is hovered

由 橙三吉。 提交于 2019-11-27 10:34:54
First of all, I'm assuming this is too complex for CSS3, but if there's a solution in there somewhere, I'd love to go with that instead. The HTML is pretty straightforward. <div class="parent"> <div class="child"> Text Block 1 </div> </div> <div class="parent"> <div class="child"> Text Block 2 </div> </div> The child div is set to display:none; by default, but then changes to display:block; when the mouse is hovered over the parent div. The problem is that this markup appears in several places on my site, and I only want the child to be displayed if the mouse is over it's parent, and not if
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