¡@
java Programming Glossary: nullHow to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet form data to the form then request.getParameter returns null . During research I stumbled upon Apache Common FileUpload ... . The request.getParameter and consorts would all return null when using multipart form data. Don't manually parse it You.. 1 .substring filename.lastIndexOf ' ' 1 MSIE fix. return null This can all also be done in a Filter which does all the job..
Overriding equals and hashCode in Java http://stackoverflow.com/questions/27581/overriding-equals-and-hashcode-in-java must keep returning the same value . Furthermore o.equals null must always return false. hashCode javadoc must also be consistent.. age . toHashCode public boolean equals Object obj if obj null return false if obj this return true if obj instanceof Person..
How to use java.net.URLConnection to fire and handle HTTP requests? http://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests connection.getHeaderField Content Type String charset null for String param contentType.replace .split if param.startsWith.. charset charset param.split 2 1 break if charset null BufferedReader reader new BufferedReader new InputStreamReader.. response charset try for String line line reader.readLine null ... System.out.println line finally try reader.close catch..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files HttpServletRequest request .getSession .getAttribute user null HttpServletResponse response .sendRedirect login Not logged.. User user userService.find username password if user null request.getSession .setAttribute user user Login user. response.sendRedirect..
http://stackoverflow.com/questions/5621338/how-to-add-jtable-in-jpanel JPanel I want to add JTable into JPanel whose layout is null . JPanel contains other components. I have to add JTable at.. at proper position. java swing layout layout manager null layout manager share improve this question Nested Layout.. JLabel imageLabel new JLabel ii imagePanel.add imageLabel null JSplitPane splitPane new JSplitPane JSplitPane.VERTICAL_SPLIT..
Java String.equals versus == [duplicate] http://stackoverflow.com/questions/767372/java-string-equals-versus compare is done on 'usuario' because that's guaranteed non null in your code although you should still check that you've actually..
How to get UTF-8 working in java webapps? http://stackoverflow.com/questions/138948/how-to-get-utf-8-working-in-java-webapps UTF 8 also CREATE TABLE `Users` `id` int 10 unsigned NOT NULL auto_increment `name` varchar 30 collate utf8_swedish_ci default.. `name` varchar 30 collate utf8_swedish_ci default NULL PRIMARY KEY `id` ENGINE InnoDB DEFAULT CHARSET utf8 COLLATE.. BEGIN DECLARE path VARCHAR 255 CHARACTER SET utf8 SET path NULL ... RETURN path END DELIMITER GET requests latin1 and UTF 8..
Making a OneToOne-relation lazy http://stackoverflow.com/questions/1444227/making-a-onetoone-relation-lazy association property should contain a proxy object or NULL and it can't determine that by looking at its base table's columns..
How to return an array from JNI to Java? http://stackoverflow.com/questions/1610045/how-to-return-an-array-from-jni-to-java jintArray result result env NewIntArray env size if result NULL return NULL out of memory error thrown int i fill a temp structure.. result env NewIntArray env size if result NULL return NULL out of memory error thrown int i fill a temp structure to use..
Pinning a Java application to the Windows 7 taskbar http://stackoverflow.com/questions/1834599/pinning-a-java-application-to-the-windows-7-taskbar pointer using GetProcAddress . If GetProcAddress returns NULL it means the symbol is not present in shell32 hence it's not..
h:inputText return a empty string instead of NULL http://stackoverflow.com/questions/2203322/hinputtext-return-a-empty-string-instead-of-null inputText return a empty string instead of NULL i make a JSF 2.0 Application and i use many h inputText fields.. the user leave this field empty JSF returns instead of NULL. How can i fix this behavior without check every String with.. javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL param name param value true param value context param For reference..
How come invoking a (static) method on a null reference doesn't throw NullPointerException? http://stackoverflow.com/questions/3293353/how-come-invoking-a-static-method-on-a-null-reference-doesnt-throw-nullpointe Passed public static void main String args Why NULL null NULL.test I read that invoking a method on a null object.. Passed public static void main String args Why NULL null NULL.test I read that invoking a method on a null object causes..
How to pass C structs back and forth to Java code in JNI? http://stackoverflow.com/questions/3923299/how-to-pass-c-structs-back-and-forth-to-java-code-in-jni arguments int actualData env GetIntArrayElements env data NULL processData actualData numObjects arguments env ReleaseIntArrayElements.. arguments env ReleaseIntArrayElements env data actualData NULL ...and finally the corresponding Java class public class MyJavaClass..
Calling a java method from c++ in Android http://stackoverflow.com/questions/5198105/calling-a-java-method-from-c-in-android string const char str env GetStringUTFChars jstring result NULL printf s n str Clean up env ReleaseStringUTFChars jstr str Shutdown.. const char str env GetStringUTFChars env jstring result NULL should be released but what a heck it's a tutorial printf s..
Method Overloading for NULL parameter http://stackoverflow.com/questions/5229809/method-overloading-for-null-parameter Overloading for NULL parameter I have added three methods with parameters public..
Getting last record from mysql http://stackoverflow.com/questions/8923366/getting-last-record-from-mysql always orders table rows according to a PRIMARY KEY or NOT NULL UNIQUE index if one is present. As far as I am concerned I assume.. sequenced. ALTER TABLE maxID ADD sequence INT DEFAULT NULL ALTER TABLE maxID ADD INDEX sequence ALTER TABLE maxID MODIFY..
What is a Null Pointer Exception? http://stackoverflow.com/questions/218384/what-is-a-null-pointer-exception is a Null Pointer Exception What are null pointer exceptions and what.. to dereference num BEFORE creating the object you get a NullPointerException. In the most trivial cases the compiler will..
http://stackoverflow.com/questions/2369226/null-check-in-java check in Java I heard from somebody that null object is better..
http://stackoverflow.com/questions/2707322/what-is-null-in-java been avoided. Some say that in a language that catches NullPointerException like Java it's good to use it because you will.. fast on programmer errors. Some people avoid null by using Null object pattern etc. This is a huge topic on its own so it's..
http://stackoverflow.com/questions/3617326/marquee-effect-in-java-swing s int n if s null n 1 throw new IllegalArgumentException Null string or n 1 StringBuilder sb new StringBuilder n for int..
Java “?” Operator for checking null - What is it? (Not Ternary!) http://stackoverflow.com/questions/4390141/java-operator-for-checking-null-what-is-it-not-ternary display ProjectCoin 2009ProposalsTOC Elvis and Other Null Safe Operators but hasn't been accepted yet. The related Elvis..
Best way to represent a fraction in Java? http://stackoverflow.com/questions/474535/best-way-to-represent-a-fraction-in-java BigFraction f if f null throw new IllegalArgumentException Null argument n1 d1 n2 d2 n1 d2 d1 n2 d1 d2 return new BigFraction.. BigInteger b if b null throw new IllegalArgumentException Null argument n1 d1 n2 n1 d1 n2 d1 return new BigFraction numerator.add.. BigFraction f if f null throw new IllegalArgumentException Null argument return new BigFraction numerator.multiply f.denominator..
http://stackoverflow.com/questions/5038798/uploading-of-pdf-file here we are checking the content type is not equal to Null and as well as the passed data from mulitpart form data is greater..
Why is it “Easier to ask forgiveness than permission” in python, but not in Java? [closed] http://stackoverflow.com/questions/6092992/why-is-it-easier-to-ask-forgiveness-than-permission-in-python-but-not-in-java mentality etc. Update2 The Java mentality Is Catching a Null Pointer Exception a Code Smell Link to relevant parts of the..
Understanding strange Java hash function http://stackoverflow.com/questions/9335169/understanding-strange-java-hash-function for hashCodes that do not differ in lower bits. Note Null keys always map to hash 0 thus index 0. static int hash int..
|