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Arrays Extend the size of an array How to copy an array Using the comparable interface to compare and sort objects How to sort an array Collections Using a set (or hashset) Using a queue (or queue List) Using a stack Remove duplicate items from an arraylist Looping through a collection object   View more... Compression Extract contents of a zip file How to list the contents of a zip file How to Create a zip file Database Connect to database and call Stored Procedure Using a database transaction with JDBC Connecting to a database-step by step Connect to a database and read from table Datatype Conversions Convert byte [] array to string Convert string to byte array Convert string to boolean Convert Boolean to string Convert byte to string   View more... File I/O Read input from user and write to file How to rename a file (change file name) Remove a line from a text file Loading configuration parameters from textfile into a program Writing objects to file with objectoutputstream   View more...

Graphics Java 2D Drawing a ractangle with rounded corners using Java 2D graphics API Drawing a ractangle using Java 2D graphics API Drawing a line using Java 2D graphics API Drawing a string using Java 2D graphics API Java language fundamentals Convert characters to lower case Convert characters to upper case Replace characters in a string Getting a substring from a string Check if string contains another string   View more... Networking Sending a POST request with parameters from a Java class Downloading a Web page using URL and urlconnection classes Perform NSLookup with the inetaddress class Reflection Instantiate unknown class at runtime and call the object's methods List methods of A Class Using Reflection Invoke methods of an object Using Reflection Servlets Redirect servlet call to another URL Forward call from a Servlet Get users IP Address Get and set session variables in a Servlet GET request parameters in a Servlet Small programs How to find and calculate prime numbers

Swing Show a message dialog with joptionpane Set look and feel for a swing Application Jlabel with more than one row Threads Setting thread priorities How to Create a thread Web Services Using a message handler to alter the SOAP header in a web service client Create a web service client with JAX-WS Create a simple Web Service

 

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