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We hope that you will enjoy our Java tutorials. Feel free to contact us if you would like to be a tutorial hero and contribute your own Java tutorial to our site. Thank you !
Half Dozen Hello Worlds Part 6 – Opening Activities
Our final article in the Half Dozen Hello Worlds will introduce you to activities. What is an activity? How do you open new activities?
Beginners Guide on Database transaction with Example
Database transaction is an important concept to understand while working in database and SQL. Transaction in database is required to protect data and keep it consistent when multiple users access the database at same time. In this database transaction tutorial we will learn what is transaction in database, why do you need transaction in database, ACID properties of database transaction and an example of database transaction along with commit and rollback.
10 Examples of tar command in Unix
tar command in unix is used for achriving purpose, you can create archive, update or extract from archieve using tar command in unix. you can also create compressed archieve by combining bzip2 and gzip along with unix tar command. for working efficiently and effectively in Unix knowledge of tar command is must.This article explains unix tar command with various real world examples for clear and quick understanding and application.
How to convert decimal to binary in Java with Example
This article is about how to convert decimal string to binary format in Java. many times we need to change the base of numbers and Java provides convenient method and utility to convert form decimal to binary.Java has methods which takes an appropriate value and a based and than convert that into corresponding base.
How to use Iterator with Array/list in Java
Iterators are similar to Enumeration in Java but with some more functionality e.g. removing element while iterating.This article gives a nice overview of Java Iterator and ListIterator and suggest how can you use both iterators based on scenarios and requirement.
How to Stop Thread in Java with Example
How do you stop or kill your thread in Java ? After deprecation of Stop method on Thread Class, there is no standard way to stop or kill a thread in Java, there is no API method which can stop threads. What Java Programmer uses it is the property that once a Thread completes execution of run() method of Runnable class, it is dead. This article gives a code sample to stop a Thread in Java with clear explanation.
4 ways to convert Double to String in Java Program
If you are working in Java , you must be familiar with Double and String. these two are most common data types available in Java, String is used to represent any textual data while Double is used to represent any floating point data in Java Program.Most of the time you need to convert either from String to Double or from Double to String in your program. this article explains multiple ways of doing this conversion in easy and effective manner with code examples and clear explanation.
How to increase java heap space on ANT and Maven
Now days for building java application we use either Maven or ANT and when we compile or build a large project in either of two we are many times greeted with OutOfMemoryError and that time we need to increase the default heap size of maven or ant and this article explains this in step by step.
How substring method works in Java
Sustring method is defined in String class in java.lang package and used to create small strings from a big string. how Substring method works internally is a tricky part and can lead to some subtle programming bug and memory leak if not understood correctly. This article explains how Substring method works and where Substring is beneficial and where its not.
Transient keyword Explained in Java with example
Some of java keyword are not very famous one of them is transient keyword which is used in Serialization process. This article explains key concept of transient variable in java. transient variable saves you from dangerous NotSerializableException if any of your member variable is not serializable and you have made class to implement serializable. it also gives you some control over serialization process by excluding some members from serialization.
Interview Questions on JSP for practice
JSP is an integral part of J2EE stack and there is always some JSP interview question asked during web developer interview. These are collection of some of frequently asked question on JSP or Java Server pages asked in various Job interview. I suggest to use these questions for revision or preparation before appearing on actual JSP Servlet interview.
Fork Join Framework in Java7
JDK 1.7 has several feature which developer would love one of them is fork-join framework which allows to break a bigger task into smaller task and then combine the result, now this is in built in java which will leverage multi processor architecture, this article is good introduction of fork-join framework in java and explains how to use it. This feature fork-join is also available via jsr 166 if you are not using java7.
Displaytag tutorial with pagination and Sorting
When it comes to show tabular data in html by using JSP or Struts spring, display tag comes in mind and its one of the best choice. displaytag handles paging, sorting , formatting and lots of other important feature and the library itself is very useful. I have already used displaytag in my several project and I recommend it to use it. this article explains 10 different examples of dispalytag which is great to start and running.
What is Variable Argument in Java
Variable argument list in java is one of the Java5 feature which is still have to be popular. though variable argument list on method is a great way to address a particular requirement , it is still not adopted by all developers. this article explains concept of varargs and simple example which will help you to get up and running.
How to write better Code
We all develop code in development, than test in QA and finally it gets released in production. But there are lot of difference between test and prod and if you have not coded taking prod environment in mind most likely code will fail in prod or result in exceptions.So what makes production environment different than development environment?
Total Tutorials in Category: 1347