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sleep() and yield() Methods
What is the difference between yielding and sleeping? When a thread invokes its yield() method, it returns to the ready state. When a thread invokes its sleep() method, it returns to the waiting state.
2007-03-03, 5759👍, 0💬

Set UI Focus on the First Field of a Form
How do I set the focus to the first form field? You cannot do this with HTML. However, you can include a JavaScript after the form that sets the focus to the appropriate field, like this: &lt;input type="text" id="myinput" name="myinput" ...> &lt;/form> &lt;script type="text/javascript">...
2007-03-03, 5754👍, 0💬

Latest Versions of Qualitycenter, QTP, LoadRunner
what are that latest versions of Qualitycenter, QTP, Winrunner and LoadRunner
2008-07-14, 5749👍, 0💬

How Many Versions of RSS Language Standards
How Many Versions of RSS Language Standards? - RSS FAQs - Introduction to RSS (Really Simple Syndication) Basics RSS is relatively new. Many versions have been developed in recent years: RSS 0.90 - The earliest known version of RSS released to the public by Netscape in 1999. RSS 0.90 is based on RDF...
2007-05-12, 5748👍, 0💬

SQL Joins
What is the difference between Inner Join and Outer Join? 1. You use INNER JOIN to return all rows from both tables where there is a match. ie. in the resulting table all the rows and colums will have values. In OUTER JOIN the relulting table may have empty colums. Outer join may be either LEFT or R...
2008-09-25, 5747👍, 0💬

Garbage Collection
Does garbage collection guarantee that a program will not run out of memory? No, it doesn't. It is possible for programs to use up memory resources faster than they are garbage collected. It is also possible for programs to create objects that are not subject to garbage collection.
2007-03-03, 5745👍, 0💬

What is the difference between Shadowing and Overriding
What is the difference between Shadowing and Overriding ? Following are the differences between shadowing and overriding :- ? Overriding redefines only the implementation while shadowing redefines the whole element. ? In overriding derived classes can refer the parent class element by using “ME” key...
2007-10-23, 5744👍, 0💬

How do you convert numbers between different bases in JavaScript?
How do you convert numbers between different bases in JavaScript? Use the parseInt() function, that takes a string as the first parameter, and the base as a second parameter. So to convert hexadecimal 3F to decimal, use parseInt ("3F", 16);
2008-04-29, 5741👍, 0💬

Why Not Just Use System.out.println() for Unit Testing?
Why Not Just Use System.out.println() for Unit Testing? Inserting debug statements into code is a low-tech method for debugging it. It usually requires that output be scanned manually every time the program is run to ensure that the code is doing what's expected. It generally takes less time in the ...
2008-02-12, 5741👍, 0💬

Writing HTML Documents Entirely by Hand
How comfortable are you with writing HTML documents entirely by hand? Very. I do not usually use WYSIWYG. The only occasions when I do use Dreamweaver are when I want to draw something to see what it looks like, and then I will usually either take that design and hand-modify it or build it all over ...
2007-03-03, 5740👍, 0💬

How To Enter Element Content
How To Enter Element Content? - XHTML Tutorials - Introduction To Tag and Attribute Syntax Most of XHML elements allow you to specify contents. But there are some XHTML elements that do not allow any contents. If an XHTML element does allow element content, you need to enter the content between the ...
2007-05-12, 5739👍, 0💬

Can you write a simple Action Class
Can you write a simple Action Class? Sure. Here is the code of Action Class that returns the ActionForward object: import javax.servlet.http.HttpServlet Request;import javax.servlet.http.HttpServlet Response;br>import org.apache.struts.action.Actio n;import org.apache.struts.action.Actio nForm;impor...
2007-12-19, 5735👍, 0💬

What is Collection API
What is Collection API? The Collection API is a set of classes and interfaces that support operation on collections of objects. These classes and interfaces are more flexible, more powerful, and more regular than the vectors, arrays, and hashtables. Example of classes: HashSet, HashMap, ArrayList, L...
2007-03-03, 5730👍, 0💬

Memorizing HTML Tags
Do I have to memorize a bunch of HTML tags? Yes. Most programs that help you write HTML code already know most tags, and create them when you press a button. But you must understand what a tag is, and how it works. That way you can correct errors in your page more easily.
2007-03-03, 5728👍, 0💬

What Is InnoDB
What Is InnoDB? - MySQL FAQs - Database Basics and Terminologies InnoDB is a transaction safe storage engine developed by Innobase Oy (an Oracle company now).
2007-05-10, 5726👍, 0💬

What Happens When FireFox Knows a Web Page Has Atom Feeds
What Happens When FireFox Knows a Web Page Has Atom Feeds? - RSS FAQs - Atom Feed Introduction and File Generation When you use a FireFox browser visiting a Web page that has an Atom feed define, FireFox will display a "live bookmark" icon in the status bar. You can click the "live bookmark" to add ...
2007-05-12, 5724👍, 0💬

What is Perl one-liner
What is Perl one-liner? There are two ways a Perl script can be run: From a command line, called one-liner - That means you type and execute immediately on the command line. You'll need the -e option to start like "C:\ %gt perl -e "print \"Hello\";". One-liner doesn't mean one Perl statement. One-li...
2007-11-19, 5723👍, 0💬

How To Convert Character Types to Numeric Types
How To Convert Character Types to Numeric Types? - Oracle DBA FAQ - Understanding PL/SQL Language Basics You can convert character types to numeric types in two ways: Explicitly by using TO_NUMBER() function. Implicitly by putting character data in a numeric operation. The sample script below shows ...
2007-04-30, 5723👍, 0💬

What is the design role played by Struts
What is the design role played by Struts? The role played by Structs is controller in Model/View/Controller(MVC) style. The View is played by JSP and Model is played by JDBC or generic data source classes. The Struts controller is a set of programmable components that allow developers to define exac...
2007-11-30, 5720👍, 0💬

How Many Test Runners Are Supported in JUnit 3.8?
How Many Test Runners Are Supported in JUnit 3.8? JUnit 3.8 supports 3 test runners: junit.textui.TestRunner - A command line based tool to run tests. TestRunner expects the name of a TestCase class as argument. If this class defines a static suite method it will be invoked and the returned test is ...
2008-03-04, 5715👍, 0💬

How To Use Subqueries with the EXISTS Operator
How To Use Subqueries with the EXISTS Operator? - MySQL FAQs - SQL SELECT Statements with JOIN and Subqueries A subquery can be used with the EXISTS operator as "EXISTS (subquery)", which returns true if the subquery returns one or more rows. The following statement is a good example of "EXISTS (sub...
2007-05-11, 5713👍, 0💬

How To Initialize Variables with Default Values
How To Initialize Variables with Default Values? - Oracle DBA FAQ - Understanding PL/SQL Language Basics There are two ways to assign default values to variables at the time of declaration: Using key word DEFAULT - Appending "DEFAULT value" to the end of declaration statements. Using assignment oper...
2007-04-30, 5712👍, 0💬

Relation between HTML and SGML
What Is the Relation between HTML and SGML? SGML (Standard Generalized Markup Language) is a metalanguage in which one can define markup languages, like HTML, for documents. SGML is a descendant of IBM's Generalized Markup Language (GML), developed in the 1960s by Charles Goldfarb, Edward Mosher and...
2007-03-03, 5712👍, 0💬

How Struts control data flow
How Struts control data flow? Struts implements the MVC/Layers pattern through the use of ActionForwards and ActionMappings to keep control-flow decisions out of presentation layer.
2007-11-30, 5709👍, 0💬

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