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FreeKB - Java articles
Java articles
Date Time
date and time
Downloading Files
Download a file in Java using Eclipse
Eclipse
Add a JAR file to Java Build Path in Eclipse
Add an application server to Eclipse (Server Target Runtime)
Configure Eclipse to use a certain version of Java
Connect to an LDAP server in Eclipse
Create a Dynamic Web Project in Eclipse
Create a servlet in Eclipse
Create a web service in Eclipse
Export an application to a WAR file in Eclipse
Export an application to an EAR file in Eclipse
Exporting an application to a file in Eclipse
Import a package class in Eclipse
Install Eclipse on Linux
Install IBM WebSphere Application Server Developer Tools in Eclipse
Install WindowBuilder GUI in Eclipse
Logging using Log4j in Eclipse
Workspaces in Eclipse
Fundamentals
Annotations
Authentication
Context Root
Cookies
Form data (POST GET)
JSP extensions
Use a class in a Java Archive (JAR)
Use classes in a JAR
What is a process and what is a thread in Java on Linux
if elsif else statements
if elsif else statements
Import
Import a class or bean into a JSP page
Install
Install Java on Linux
JAR command
Create a JAR file on the command line
Extract a JAR file on the command line
List files in a JAR file on the command line
JAR Files
Create a JAR file that can be run as a Java Application from the command line
Java Keystores and Truststores
trustedCertEntry vs PrivateKeyEntry
Understanding the difference between a Java keystore and a truststore
Java keytool command
Getting Started with the Java keytool command
Change keystore or truststore password using the java keytool command
Create a keystore using the Java keytool command
Create a truststore using the Java keytool command
Delete a certificate from a keystore or truststore using the Java keytool command
Export a certificate from a keystore or truststore using the Java keytool command
Import a certificate into a keystore or truststore using the Java keytool command
List the certificates in a CER CRT PEM file using the Java keytool command
List the certificates in a keystore or truststore using the Java keytool command
Java Programming
Create a simple Java app in Linux on the command line
JSTL
JSTL date format
JSTL if else statements using c:choose c:when c:otherwise
JSTL if statements using c:if test
JSTL Loop through an array using c:forToken
JSTL Session ID
JSTL SQL count
JSTL variable using c:set and c:out
Logging
LogConfig.xml (log level)
Printing Output
System.out.println
Properties Files
Obtain data from a properties file
return
return a value from a class to a JSP page
Sessions
Sessions in a JSP page
SQL
Connect to a SQL database via DataSource
Connect to a SQL database via DriverManager
SQL select
SSL
get Private Key
Terminology
Understanding beans
Understanding class
Understanding classpath
Understanding constructors
Understanding methods
Understanding Public Private Protected
Understanding variables
Troubleshooting
Resolve "Could not load the server configuration" in Eclipse
Resolve "Failed to load Premain-Class manifest attribute"
Resolve "no main manifest attribute"
Resolve "No suitable driver found for jdbc/mySQL"
URL Connect
Get HTTP response code using Eclipse
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