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java Programming Glossary: catHow to avoid type safety warnings with Hibernate HQL results? http://stackoverflow.com/questions/115692/how-to-avoid-type-safety-warnings-with-hibernate-hql-results I have such query Query q sess.createQuery from Cat cat List cats q.list If I try to make something like this it will.. have such query Query q sess.createQuery from Cat cat List cats q.list If I try to make something like this it will show warning.. needs unchecked conversion to conform to List List Cat cats q.list Is there a way to avoid it java hibernate generics..
Want to invoke a linux shell command from Java http://stackoverflow.com/questions/1410741/want-to-invoke-a-linux-shell-command-from-java try Process p Runtime.getRuntime .exec new String csh c cat home narek pk.txt instead. EDIT I don't have csh on my system..
How to use adapter.notifyDataSetChanged(); where i have to use these line for my error http://stackoverflow.com/questions/15491876/how-to-use-adapter-notifydatasetchanged-where-i-have-to-use-these-line-for-my 4 results.add item_details return results and my log cat error is 03 19 05 04 35.103 E AndroidRuntime 1110 FATAL EXCEPTION.. adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from.. clicking the second item in the listview application has stopped and showing error like this as i mention in logcat..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android to discover memory usage of my application in Android I would like to know how I can find the memory.. to know how I can find the memory used on my Android application programmatically. I hope there is a way to do it. Plus I.. modern operating systems like Linux is an extremely complicated and difficult to understand area. In fact the chances of you..
Is List<Dog> a subclass of List<Animal>? Why aren't Java's generics implicitly polymorphic? http://stackoverflow.com/questions/2745265/is-listdog-a-subclass-of-listanimal-why-arent-javas-generics-implicitly-p a List Animal you can add any animal to it... including a cat. Now can you logically add a cat to a litter of puppies Absolutely.. to it... including a cat. Now can you logically add a cat to a litter of puppies Absolutely not. Illegal code because.. should be safe right Suddenly you have a very confused cat. Now you can't add a Cat to a List extends Animal because you..
How to create a BKS (BouncyCastle) format Java Keystore that contains a client certificate chain http://stackoverflow.com/questions/4065379/how-to-create-a-bks-bouncycastle-format-java-keystore-that-contains-a-client-c format Java Keystore that contains a client certificate chain I'm writing an Android app that requires SSL client.. writing an Android app that requires SSL client authentication. I know how to create a JKS keystore for a desktop Java application.. know how to create a JKS keystore for a desktop Java application but Android only supports the BKS format. Every way I've..
How to convert from int to String? http://stackoverflow.com/questions/4105331/how-to-convert-from-int-to-string would be Integer.toString i or String.valueOf i . The concatenation will work but is unconventional and could be a bad smell.. out the empty string in this case look simon@lucifer ~ cat TestClass.java public class TestClass public static void main..
String concatenation: concat() vs + operator http://stackoverflow.com/questions/47605/string-concatenation-concat-vs-operator concatenation concat vs operator I'm curious and wasn't sure so i.. concatenation concat vs operator I'm curious and wasn't sure so i thought id ask.. sure so i thought id ask assuming String a and b. a b a.concat b Under the hood are they the same thing Edit Here is concat..
what does it mean when they say http is stateless http://stackoverflow.com/questions/4913763/what-does-it-mean-when-they-say-http-is-stateless is stateless because it remembers nothing between invocations. EVERY resource that is accessed via HTTP is a single request.. connect sign in change to the directory and now issue the cat command. When the command displaying the file finished the connection.. of sense. When you start using it for things like web applications online stores etc. then statelessness starts to be a bother..
How to convert String to JSONObject in Java http://stackoverflow.com/questions/5245840/how-to-convert-string-to-jsonobject-in-java it is stored in jsonString String variable.. phonetype N95 cat WP Now I want to convert it into JSON Object. I searched more..
Cut out image in shape of text http://stackoverflow.com/questions/6295084/cut-out-image-in-shape-of-text I think it's best shown in images. This is a photo of a cat and this is the text I wish to cut out The resulting image would.. new BufferedImage and iterate over all the pixels of word cat and if they are black copy the cat image pixels to the new image... all the pixels of word cat and if they are black copy the cat image pixels to the new image. Here is some code Final working..
Limit jvm process memory on ubuntu http://stackoverflow.com/questions/9145769/limit-jvm-process-memory-on-ubuntu put into more detail messages here. I try to start my application with JVM OPTs Xmx128m Xms32m XX MaxPermSize 64m . When the.. the app started and I check the memory usage by typing cat proc 10413 status and I found the vmsize is more than 600512.. maintaining the Java heap. Data structures must be allocated to track free storage and record progress when collecting..
why doesn't java send the client certificate during SSL handshake? http://stackoverflow.com/questions/9299133/why-doesnt-java-send-the-client-certificate-during-ssl-handshake doesn't java send the client certificate during SSL handshake I'm trying to connect to a secure webservice... problem was that java chose not to send the client certificate to the server during the handshake. Specifically Server requested.. handshake. Specifically Server requested a client certificate CN RootCA i.e. give me a cert that is signed by the root CA..
How to avoid type safety warnings with Hibernate HQL results? http://stackoverflow.com/questions/115692/how-to-avoid-type-safety-warnings-with-hibernate-hql-results example I have such query Query q sess.createQuery from Cat cat List cats q.list If I try to make something like this it.. List needs unchecked conversion to conform to List List Cat cats q.list Is there a way to avoid it java hibernate generics.. Replace your assignment with this List Cat cats Collections.checkedList q.list Cat.class You might want..
At runtime, find all classes in a Java application that extend a base class http://stackoverflow.com/questions/205573/at-runtime-find-all-classes-in-a-java-application-that-extend-a-base-class new ArrayList Animal animals.add new Dog animals.add new Cat animals.add new Donkey ... With the above approach I can simply..
Any simple way to explain why I cannot do List<Animal> animals = new ArrayList<Dog>()? [duplicate] http://stackoverflow.com/questions/2346763/any-simple-way-to-explain-why-i-cannot-do-listanimal-animals-new-arraylistd to a colleague. He not unreasonably believes he can put a Cat in it. He then gives it back to you and you now have a list.. it back to you and you now have a list of Dogs with a Cat in the middle of it. Chaos ensues. It's important to note that.. Scala lists are by default immutable and so adding a Cat to a list of Dogs would give you a new list of Animals . share..
Is List<Dog> a subclass of List<Animal>? Why aren't Java's generics implicitly polymorphic? http://stackoverflow.com/questions/2745265/is-listdog-a-subclass-of-listanimal-why-arent-javas-generics-implicitly-p Assume the following hierarchy Animal Parent Dog Cat Children So suppose I have a method doSomething List Animal.. I would assume that a List Dog is a List Animal and a List Cat is a List Animal and so either one could be passed to this method... Dog List Animal animals dogs Awooga awooga animals.add new Cat Dog dog dogs.get 0 This should be safe right Suddenly you have..
Java - declaring from Interface type instead of Class http://stackoverflow.com/questions/3383726/java-declaring-from-interface-type-instead-of-class public static void main String args PetInterface p new Cat p.talk interface PetInterface public void talk class Dog implements.. @Override public void talk System.out.println Bark class Cat implements PetInterface @Override public void talk System.out.println.. Meow public void batheSelf System.out.println Cat bathing My question is I cannot access the batheSelf method..
Polymorphism with gson [closed] http://stackoverflow.com/questions/5800433/polymorphism-with-gson IAnimal public String sound The two derived classes Cat public class Cat implements IAnimal public String name public.. String sound The two derived classes Cat public class Cat implements IAnimal public String name public Cat String name.. class Cat implements IAnimal public String name public Cat String name super this.name name @Override public String sound..
http://stackoverflow.com/questions/8169964/is-mvc-in-swing-thread-safe this private final String petStrings Bird Cat Dog Rabbit Pig Fish Horse Cow Bee Skunk private int index 1..
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