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java Programming Glossary: intHow to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter ApplicationFilterChain.java 313 at org.apache.catalina.core.ApplicationFilterChain.doFilter.. 588 at org.apache.tomcat.util.net.JIoEndpoint Worker.run JIoEndpoint.java 489 at java.lang.Thread.run Thread.java.. org.apache.tomcat.util.net.JIoEndpoint Worker.run JIoEndpoint.java 489 at java.lang.Thread.run Thread.java 637 java jsp java..
Overriding equals and hashCode in Java http://stackoverflow.com/questions/27581/overriding-equals-and-hashcode-in-java An example public class Person private String name private int age ... public int hashCode return new HashCodeBuilder 17 31.. Person private String name private int age ... public int hashCode return new HashCodeBuilder 17 31 . two randomly chosen.. sure that the hashCode of the key objects that you put into the collection never changes while the object is in the collection...
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 I use it to fire and handle HTTP requests Are there other hints and best practices on this that may be useful java http httprequest.. trivial IOException s and RuntimeException s like NullPointerException ArrayIndexOutOfBoundsException and consorts yourself... to the URL using . The Accept Charset header may hint the server what encoding the parameters are in. If you don't..
GUI not working after rewriting to MVC http://stackoverflow.com/questions/3066590/gui-not-working-after-rewriting-to-mvc when I click on empty Pin that should be updated and repainted with new color noting happens. Can anybody see any problems.. Can anybody see any problems here I've tried placing repaint in different places but it simply does not work at all Main.. import java.util.Random public class Model static final int LINE 5 SCORE 10 OPTIONS 20 Pin pins new Pin 21 LINE int combination..
http://stackoverflow.com/questions/5621338/how-to-add-jtable-in-jpanel to add JTable in JPanel I want to add JTable into JPanel whose layout is null . JPanel contains other components... effects. The following code puts a variety of components into a frame to demonstrate how to use nested layouts. All the layouts.. String plafNames new String plafInfos.length for int ii 0 ii plafInfos.length ii plafNames ii plafInfos ii .getName..
Java String.equals versus == [duplicate] http://stackoverflow.com/questions/767372/java-string-equals-versus in Java 27 answers This code separates a string into tokens and stores them in an array of strings and then compares.. StringTokenizer tokens new StringTokenizer strDatos int nDatos tokens.countTokens String datos new String nDatos int.. nDatos tokens.countTokens String datos new String nDatos int i 0 while tokens.hasMoreTokens String str tokens.nextToken datos..
Java On-Memory Efficient Key-Value Store http://stackoverflow.com/questions/10064422/java-on-memory-efficient-key-value-store can have multiple values maximum 2 3 whose key are 50 bit Integers and values are 32 bit maximum Integers. Now my requirements.. key are 50 bit Integers and values are 32 bit maximum Integers. Now my requirements are Fast Insertion of Key Value pair.. if we assign 64bit 14 bit will lost and values are 32 bit Int maximum mostly they are 10 12 14 bits. So we can save space..
JProgressBar in JTable not updating http://stackoverflow.com/questions/10486931/jprogressbar-in-jtable-not-updating def getColumnCount 4 def getRowCount 4 def getValueAt y Int x Int d d .format x y override def setValueAt value Any row.. getColumnCount 4 def getRowCount 4 def getValueAt y Int x Int d d .format x y override def setValueAt value Any row Int col.. Int d d .format x y override def setValueAt value Any row Int col Int if col 0 model.fireTableCellUpdated row col class TestCellRenderer..
http://stackoverflow.com/questions/11437203/byte-array-to-int-array array to Int Array I am reading a file by using int len int new File args.. here . Is it possible to convert byte array buf to an Int Array Is converting the Byte Array to Int Array will take significantly.. array buf to an Int Array Is converting the Byte Array to Int Array will take significantly more space Edit my file contains..
Going from 127.0.0.1 to 2130706433, and back again http://stackoverflow.com/questions/2241229/going-from-127-0-0-1-to-2130706433-and-back-again val pack InetAddress.getByName dottedString .getAddress Int to string byte unpack int bytes return new byte byte bytes 24..
Byte Array and Int conversion in Java http://stackoverflow.com/questions/5399798/byte-array-and-int-conversion-in-java Array and Int conversion in Java I am having some difficulty with these two.. having some difficulty with these two functions byteArrayToInt and intToByteArray. The problem is that if I use one to get.. int a 123 byte aBytes intToByteArray a int a2 byteArrayToInt aBytes System.out.println a prints '123' System.out.println..
How to optimize for-comprehensions and loops in Scala? http://stackoverflow.com/questions/6146182/how-to-optimize-for-comprehensions-and-loops-in-scala 103 seconds 147 times longer object P005_JavaStyle val t Int 20 def run var i 10 while isEvenlyDivisible i t i 2 println.. i t i 2 println i def isEvenlyDivisible a Int b Int Boolean for i 2 to b if a i 0 return false return true.. i t i 2 println i def isEvenlyDivisible a Int b Int Boolean for i 2 to b if a i 0 return false return true def..
How to get UTF-8 working in java webapps? http://stackoverflow.com/questions/138948/how-to-get-utf-8-working-in-java-webapps EXISTS `pathToNode` CREATE FUNCTION `pathToNode` ryhma_id INT RETURNS TEXT CHARACTER SET utf8 READS SQL DATA BEGIN DECLARE..
document not saving in spring jpa document manager application http://stackoverflow.com/questions/20586865/document-not-saving-in-spring-jpa-document-manager-application include CREATE TABLE IF NOT EXISTS documenttypes id INT 4 UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY name VARCHAR.. 80 INDEX name CREATE TABLE IF NOT EXISTS patients id INT 4 UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY first_name VARCHAR.. PRIMARY KEY client_id int 4 UNSIGNED NOT NULL type_id INT 4 UNSIGNED name varchar 200 NOT NULL description text NOT NULL..
Sqlite table constraint - unique on multiple columns http://stackoverflow.com/questions/2701877/sqlite-table-constraint-unique-on-multiple-columns the documentation on the link I provided says that CONTSTRAINT name should come before my constraint definition. Something.. If I put ...last_column_name last_col_datatype CONSTRAINT ... the error is near CONSTRAINT syntax error If I put ...last_column_name.. last_col_datatype CONSTRAINT ... the error is near CONSTRAINT syntax error If I put ...last_column_name last_col_datatype..
how to resume an interrupted download - part 2 http://stackoverflow.com/questions/3428102/how-to-resume-an-interrupted-download-part-2 DELi SAMi OTRi UNRi PUBi IND PHY ONL UNI PUR FIN COM NAV INT DEM CNT STA PO L HEA PRE LOC GOV content type application zip.. DELi SAMi OTRi UNRi PUBi IND PHY ONL UNI PUR FIN COM NAV INT DEM CNT STA PO L HEA PRE LOC GOV content type application zip.. DELi SAMi OTRi UNRi PUBi IND PHY ONL UNI PUR FIN COM NAV INT DEM CNT STA PO L HEA PRE LOC GOV content type application zip..
How to do a fractional power on BigDecimal in Java? http://stackoverflow.com/questions/3579779/how-to-do-a-fractional-power-on-bigdecimal-in-java DOUBLE make sure it's not bigger than MAX_VALUE A will be INT maximum 2147483647 but the BigDecimal.pow doesn't support integers..
Getting last record from mysql http://stackoverflow.com/questions/8923366/getting-last-record-from-mysql be correctly sequenced. ALTER TABLE maxID ADD sequence INT DEFAULT NULL ALTER TABLE maxID ADD INDEX sequence ALTER TABLE.. maxID ADD INDEX sequence ALTER TABLE maxID MODIFY sequence INT AUTO_INCREMENT http sqlfiddle.com # 2 63a8d 1 share improve..
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