How do I invoke a child process from C# with UseShellExecute set to false and allow file deletion? The child process is a java program creates a 0 byte file, transfers it to a remote server, and deletes it. This functionality works when I execute the java program from the Windows command line. If I invoke the java program from C# usin...
I have a two classes, Service and Customer, with a many-to-one association from Service to Customer. I want to delete a Customer and any Service that references it. I'm using JPA as the ORM (with Hibernate underneath) attached to a PostgreSQL db. It'd be great if I could define the association in such a way that deleting the Customer wo...
I've just stumbled upon the following new java web framework: Play http://www.playframework.org/ http://www.playframework.org/documentation/1.0/home with such a stunning list of features, I'm pretty much surprised I haven't heard of it before... Sounds like the java web development promised land... has anybody tried it? any real exp...
I am manually converting code from Java (1.6) to C# and finding some difficulty with the behaviour of primitives (int and double). In C# it appears that almost all conversions happen automatically List<double> list1 = new List<double>(); // legal, C# double d0 = 3.0; list1.Add(d0); // ...
Hi. Is there any way I can print/show images on top of each other. The picture on top will always be positioned a little lower so that the one under will show partially. How can I decide which image is on top of what image? What layout lets me do this kind of positioning? Is there any way that I can make a border appear on the image wh...
Hi, I'm generating some PDF files using Apache FOP v0.94. Can you please tell me how to set the PDF Document Properties like Title, Author, Keywords etc programmatically? Googled a bit but didn't get any useful information. Thanks in advance... ...
I'm aware of server-side javascript for a long time now, but I don't have a clue about how it works. Could someone point me in the right direction? I'm interested in how to use server-side javascript + Java Servlet technology EDIT Great! I have seen those technologies before, but for some reason I didn't associate them with "server-...
I have a dilemma configuring my log4j.xml (attached below) for the Quartz web-app. It is spitting out log messages to stdout (which my Tomcat instance then logs) for INFO reported by Quartz's LoggingJobHistory plugin. It is using the "stdout" appender defined below; I can tell this because I put the "ZZZ" there and it makes its way int...
In my WebService I need to log the caller's id, but wsContext.getUserPrincipal() returns null even though the user was authenticated using WS-Security with password authentication. According to the JavaDocs for JAX-WS 2.1 WSContext.getUserPrincipal() should only return null if the user has not been authenticated. Do I have to do someth...
I'm writing a small Java-based server around Tokyo Cabinets JNI-bindings, and I am a bit confused regarding opening and closing of the db file. The server is multi-threaded, and I'm therefore wondering if it is best to open the db file upon start-up and then let the threads use get/put unsynchronized (I think that the tokyo docs state th...
I want to embed a dsl or existing full language within my application. It should be a simple, full Turing complete language but simple and light enough that the code can be interpreted without too much overhead. Also the other "processes" can't effect any other process. I was considering using Clojure and invoking the Clojure interpret...
I'm somewhat new to Java, and especially new to tables, and I'm having a bit of trouble with one particular task. I have a JTable that uses a custom table model that extends DefaultTableModel, and I've attached a TableRowSorter to the table. The sample application below has two buttons--one will load rows into the table and one will re...
Hello All, I'm trying to create an applet which displays a simple table with no headers or other decoration. Could anyone be so kind as to show me the code for this? All the examples I've found haven't compiled or have included extra features which I don't need. A simple 2 x 2 table with empty cells and no headers is what I'm looking for...
I have this code in a ListCellRenderer which extends JEditorPane. The editor pane doesn't show the image, but instead shows a 'broken icon'. What's wrong with it? public class TweetCellRenderer extends JEditorPane implements ListCellRenderer { public Component getListCellRendererComponent( javax.swing.JList list, Ob...
Hi I am working on the following problem: Write a recursive function that calculates the sum of the negative numbers of the array. Pass in the array {15 , -7 , -19 , 8 , 5 , -6 , -1} from the main method . The recursive function should return the result -33 . Print out this value in the main method. This program should be named Negsum....
A java implementation creates two different digest for a same input string, if i run as stand alone application or running inside a web application. The standalone application matches with oracle dbms The implementation is MessageDigest md5 = MessageDigest.getInstance("MD5"); if (md5 != null) { md5.reset(); ne...
I have a question about the usage of "utility/helper" methods in a factory class. Consider an example of an XML string that reprents a document. I have a class that transforms it to an "object" (say PDF, Word, CSV, etc.). I have a factory class (lets call it DocumentFactory) that accepts this XML string and based on certain rules gives b...
I have two names from a user. I want to compare them and display them in alphabetical order. I tried the compareTo method, but that only returns an int. EDIT: Answer found! Thanks again guys! ...
I am manually converting code from Java to C# and struggling with (what I call) primitive types (see, e.g. http://stackoverflow.com/questions/1597154/do-autoboxing-and-unboxing-behave-differently-in-java-and-c). From the answers I understand that double (C#) and Double (C#) are equivalent. double (C#) can also be used in containers, e.g...
I need to reverse the string of a user's input. I need it done in the simplest of ways. I was trying to do reverseOrder(UserInput) but it wasn't working. For example, user inputs abc I just take the string and print out cba ...