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The Java™ Tutorials

The Java™ Tutorials
The Java Tutorials are practical guides for programmers who want to use the Java programming language to create applications. They include hundreds of complete, working examples, and dozens of lessons. Groups of related lessons are organized into "trails". The Java Tutorials primarily describe features in Java SE 8. For best results, download JDK 8. What's New The Java Tutorials are continuously updated to keep up with changes to the Java Platform and to incorporate feedback from our readers. This release of the tutorial corresponds to the JDK 8u101 release. Two new processing limit properties, entityReplacementLimit and maxXMLNameLimit, have been added to JAXP. Trails Covering the Basics These trails are available in book form as The Java Tutorial, Sixth Edition. Creating Graphical User Interfaces Creating a GUI with Swing — A comprehensive introduction to GUI creation on the Java platform.Creating a JavaFX GUI — A collection of JavaFX tutorials. Specialized Trails and Lessons

http://docs.oracle.com/javase/tutorial/index.html

Java Programming/Creating Objects Before a Java object can be created the class byte code must be loaded from the file system (with .class extension) to memory. This process of locating the byte code for a given class name and converting that code into a Java class instance is known as class loading. There is one class created for each type of Java class. All objects in Java programs are created on heap memory. An object is created based on its class. You can consider a class as a blueprint, template, or a description how to create an object. Java Tutorial Java is a high-level programming language originally developed by Sun Microsystems and released in 1995. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. This tutorial gives a complete understanding of Java.

Installing Tomcat This is a brief "how-to" for installing Tomcat on a Windows PC. Installing Java Tomcat requires java in order to run. If your computer already has java installed, you can probably skip this step. However, make sure you have a recent version of java. Here I provide instructions for installing version 1.4.2 of the Java 2 Platform, Standard Edition (J2SE). Lesson: Generics (The Java™ Tutorials > Bonus) Introduced in J2SE 5.0, this long-awaited enhancement to the type system allows a type or method to operate on objects of various types while providing compile-time type safety. It adds compile-time type safety to the Collections Framework and eliminates the drudgery of casting. IntroductionDefining Simple GenericsGenerics and SubtypingWildcardsGeneric MethodsInteroperating with Legacy CodeThe Fine PrintClass Literals as Runtime-Type TokensMore Fun with WildcardsConverting Legacy Code to Use GenericsAcknowledgements

GetStartedwithJavaDB Introduction Java DB is Sun's supported distribution of the open source Apache Derby 100% Java technology database. It is fully transactional, secure, easy-to-use, standards-based — SQL, JDBC API, and Java EE — yet small, only 2MB. Lesson: Generics (The Java™ Tutorials > Learning the Java Language) In any nontrivial software project, bugs are simply a fact of life. Careful planning, programming, and testing can help reduce their pervasiveness, but somehow, somewhere, they'll always find a way to creep into your code. This becomes especially apparent as new features are introduced and your code base grows in size and complexity. Fortunately, some bugs are easier to detect than others. Compile-time bugs, for example, can be detected early on; you can use the compiler's error messages to figure out what the problem is and fix it, right then and there.

Best Programming Quotations A good programmer is someone who looks both ways before crossing a one-way street. -- Doug Linder, systems administrator A most important, but also most elusive, aspect of any tool is its influence on the habits of those who train themselves in its use. If the tool is a programming language this influence is, whether we like it or not, an influence on our thinking habits. -- Edsger Dijkstra, computer scientist Being abstract is something profoundly different from being vague... The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise. -- Edsger Dijkstra Besides a mathematical inclination, an exceptionally good mastery of one's native tongue is the most vital asset of a competent programmer. -- Edsger Dijkstra

The Java™ Tutorials The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available.See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases.See JDK Release Notes for information about new features, enhancements, and removed or deprecated options for all JDK releases. The Java Tutorials are practical guides for programmers who want to use the Java programming language to create applications. They include hundreds of complete, working examples, and dozens of lessons. Groups of related lessons are organized into "trails". Trails Covering the Basics

TIOBE Software: Tiobe Index TIOBE Index for January 2016 January Headline: Java is TIOBE's Programming Language of 2015! Java has won the TIOBE Index programming language award of the year. This is because Java has the largest increase in popularity in one year time (+5.94%). Java leaves runner ups Visual Basic.NET (+1.51%) and Python (+1.24%) far behind. At first sight, it might seem surprising that an old language like Java wins this award. Programmer Level I Exam (The Java™ Tutorials > Bonus > Preparation for Java Programmer Language Certification) This page maps sections in the Java Tutorials to topics covered in the Java SE 7 Programmer I exam. This exam is associated with the "Oracle Certified Associate, Java SE 7 Programmer" certificate. The topics covered in this exam are: Section 1: Java Basics Item 1: Define the scope of variables. Variables

Java 7: Project Coin in code examples This blog introduces - by code examples - some new Java 7 features summarized under the term Project Coin. The goal of Project Coin is to add a set of small language changes to JDK 7. These changes do simplify the Java language syntax. Java Concurrency / Multithreading Asynchronous task handling is important for any application which performs time consuming activities, as IO operations. Two basic approaches to asynchronous task handling are available to a Java application: application logic blocks until a task completesapplication logic is called once the task completes, this is called a nonblocking approach.

Connecting to a MySQL Database This document demonstrates how to set up a connection to a MySQL database from the NetBeans IDE. Once connected, you can begin working with MySQL in the IDE's Database Explorer by creating new databases and tables, populating tables with data, and running SQL queries on database structures and content. This tutorial is designed for beginners with a basic understanding of database management, who want to apply their knowledge to working with MySQL in NetBeans IDE. MySQL is a popular Open Source relational database management system (RDBMS) commonly used in web applications due to its speed, flexibility and reliability.

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