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In what instances you will declare a constructor to be private
In what instances you will declare a constructor to be private? When we create a private constructor, we can not create object of the class directly from a client. So you will use private constructors when you do not want instances of the class to be created by any external client. Example UTILITY f...
2007-10-23, 6037👍, 0💬

How To Test NULL Values
How To Test NULL Values? - Oracle DBA FAQ - Understanding PL/SQL Language Basics There ate two special comparison operators you can use on NULL values: "variable IS NULL" - Returns TRUE if the variable value is NULL. "variable IS NOT NULL" - Return TRUE if the variable value is not NULL. The followi...
2007-04-29, 6031👍, 0💬

What is Oracle Forms and what is it used for?
What is Oracle Forms and what is it used for? Oracle Forms is a 4GL Rapid Application Development (RAD) environment. Forms Builder is used to create applications to enter, access, change, or delete data from Oracle (and other) databases. The Forms Runtime environment is required to execute compiled ...
2011-03-15, 6029👍, 0💬

How To Perform Key Word Search in Tables
How To Perform Key Word Search in Tables? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts The simplest way to perform key word search is to use the SELECT statement with a LIKE operator in the WHERE clause. The LIKE operator allows you to match a text field with a keyword pattern...
2007-05-11, 6027👍, 0💬

Do we need to pay the Struts if being used in commercial purpose
Do we need to pay the Struts if being used in commercial purpose? No. Struts is available for commercial use at no charge under the Apache Software License. You can also integrate the Struts components into your own framework just as if they were writtern in house without any red tape, fees, or othe...
2007-11-29, 6026👍, 0💬

What Is the MIME Type Definition for Atom Files
What Is the MIME Type Definition for Atom Files? - RSS FAQs - Atom Feed Introduction and File Generation Atom files have its own MIME type definition as: MIME type: application/atom+xml File extension: .atom, .xml Type of format: Syndication Extended from: XML
2007-05-12, 6023👍, 0💬

Describe the various components in sequence diagrams
Describe the various components in sequence diagrams? Object lifeline: It represents the lifetime of an object creation and its destruction. If the object is created or destroyed during the time period the diagram represents, then the lifeline stops or starts at the appropriate point. An object's de...
2007-10-26, 6021👍, 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, 6019👍, 0💬

Performance Testing
What are major factors to consider when doing performance testing What is Performance Testing? Testing conducted to evaluate the compliance of a system or component with specified performance requirements. Often this is performed using an automated test tool to simulate large number of users. Also k...
2009-03-23, 6012👍, 0💬

What does "1"+2+4 evaluate to?
What does "1"+2+4 evaluate to? Since "1" is a string, everything is a string, so the result is a string of "124".
2008-07-29, 6011👍, 0💬

How To Query Tables and Loop through the Returning Rows
How To Query Tables and Loop through the Returning Rows? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts The best way to query tables and loop through the returning rows is to run the SELECT statement with the mysql_query() function, catch the returning object as a result set, an...
2007-05-11, 6011👍, 0💬

What is JSP
What is a JSP and what is it used for? Java Server Pages (JSP) is a platform independent presentation layer technology that comes with SUN's J2EE platform. JSPs are normal HTML pages with Java code pieces embedded in them. JSP pages are saved to *.jsp files. A JSP compiler is used in the background ...
2007-04-03, 6011👍, 0💬

Design Methods
Kindly help me find discussion Regarding the following. 1. Data Design 2. Arch'l. Design Process 3. Transform Mapping 4. Transaction Mapping 5. Design Post Processing 6. Arch'l. Design Optimization 7. Interface Design 8. Human-computer Interface Design 9. Procedural design
2009-09-06, 6008👍, 0💬

What is DTD (Document Type definition)
What is DTD (Document Type definition)? It defines how your XML should structure. For instance in the above XML we want to make it compulsory to provide “qty” and “totalcost”, also that these two elements can only contain numeric. So you can define the DTD document and use that DTD document with in...
2007-10-31, 6002👍, 0💬

How To Turn On Some Parts of Table Outer Borders
How To Turn On Some Parts of Table Outer Borders? - XHTML 1.0 Tutorials - Understanding Tables and Table Cells If you don't want to turn all 4 edges of outer borders in a table, you need to use the "frame" attribute, which offer the following options: &lt;table border="1" frame="border"&gt; ...
2007-05-11, 6000👍, 0💬

What helpers in the form of JSP pages are provided in Struts framework
What helpers in the form of JSP pages are provided in Struts framework? There are 4 major JSTLs (JSP Standard Tag Libraries) provided in Struts as JSP helpers. Those tag libraries are described in TLD (Tag Library Descriptor) files: struts-html.tld - Tags to help generating HTML elements. struts-for...
2007-12-05, 5997👍, 0💬

How To Quote Element Attribute Values Properly
How To Quote Element Attribute Values Properly? - XHTML Tutorials - Introduction To Tag and Attribute Syntax You know that attribute values must be quoted. But how to attribute values properly? Here are some basic rules you should remember: An attribute value must be quoted. An attribute value can b...
2007-05-12, 5992👍, 0💬

What Is Commit
What Is Commit? - MySQL FAQs - Database Basics and Terminologies Commit is a way to terminate a transaction with all database changes to be saved permanently to the database server.
2007-05-10, 5991👍, 0💬

What Is a HTML Tag
What is a HTML tag? In HTML, a tag tells the browser what to do. When you write an HTML page, you enter tags for many reasons -- to change the appearance of text, to show a graphic, or to make a link to another page.
2007-03-03, 5991👍, 0💬

What is ENUM
What is ENUM ? It’s used to define constants.
2007-10-23, 5990👍, 0💬

Define Elementary process in FPA
What are function points? FPA is breaking huge systems in to smaller pieces and analyzing them. Software application is combination of set of elementary processes. EP is smallest unit of activity that is meaningful to the user. EP must be self contained and leave the application in a consistent stat...
2007-10-30, 5986👍, 0💬

Defining an Interface
How to define an Interface? Java Interface defines methods but does not implement them. Interface can include constants. A class that implements an interface is required to implement all the methods defined in the interface. Here is an example of interface definition: public interface MyInterface { ...
2007-03-03, 5984👍, 0💬

Forms and Pull-Down Navigatin Menus
How can I use forms for pull-down navigation menus? There is no way to do this in HTML only; something else must process the form. JavaScript processing will work only for readers with JavaScript-enabled browsers. CGI and other server-side processing is reliable for human readers, but search engines...
2007-03-03, 5978👍, 0💬

How to add Buttons in JavaScript?
How to add Buttons in JavaScript? The most basic and ancient use of buttons are the "submit" and "clear", which appear slightly before the Pleistocene period. Notice when the "GO!" button is pressed it submits itself to itself and appends the name in the URL. &lt;form action="" name="buttonsGalo...
2008-05-20, 5975👍, 0💬

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