Interview Questions

Multiple inheritance is not supported directly but it is achieved through the concept of Interface

The differences in responsibilities are listed below:

- QA is concern for Process Quality and Programmers are concern for Product Quality.

- QA ensure that the processes used for developing the product of high quality where as programmers used these processes so that end product is of good quality.

- Processes are decided by QA. Programmers are supposed to follow the processes so that they can produce a good quality product.

- Any issue found during execution of process by the programmers is communicated to the QA so that they can improve the process.

An accounts receivable aging is a report that lists unpaid customer invoices and unused credit memos by date ranges. A typical aging report lists invoices in 30-day "buckets," where the left-most column contains all invoices that are 30 days old or less, the next column contains invoices that are 31-60 days old, the next column contains invoices that are 61-90 days old, and the final column contains all older invoices. The report is sorted by customer name, with all invoices for each customer itemized directly below the customer name, usually sorted by either invoice number or invoice date. A sample report follows, though without the individual invoice detail that is usually found in such a report:

Customer Name 

Total A/R 0-30

Days 31-60

Days 61-90

Days 90+

Days

Abercrombie $15,000 $10,000 $5,000 

Bufford Inc. 29,000 20,000 9,000 

Chesterton Co. 83,000 47,000 21,000 12,000 3,000

Denver Brothers 8,000 8,000

Totals $135,000 $57,000 $46,000 $21,000 $11,000

If the report is generated by an accounting software system (which is usually the case), then you can usually reconfigure the report for different date ranges. For example, if your payment terms are net 15 days, then the date range in the left-most column should only be for the first 15 days. This drops 16-day old invoices into the second column, which highlights that they are now overdue for payment.

The report primarily contains invoices, but it may also contain credit memos that have not been used by customers, or which have not yet been matched against an unpaid invoice.

The aging report is the primary tool used by collections personnel to determine which invoices are overdue for payment, and which therefore require them to contact customers. Given its use as a collection tool, the report may be configured to also contain contact information for each customer.

The aging report is also used as a tool for estimating potential bad debts, which are then used to revise the allowance for doubtful accounts. The usual method for doing so is to derive the historical percentage of invoice dollar amounts in each date range that usually become a bad debt, and apply these percentages to the column totals in the most recent aging report.

An additional use of the aging report is by the credit department, which can view the current payment status of any outstanding invoices to see if customer credit limits should be changed. This is not an ideal use of the report, since the credit department should also review invoices that have already been paid in the recent past. Nonetheless, the report does give a good indication of the near-term financial situation of customers.

Dealing with primitives as objects is easier at times. Most of the objects collection store objects and not primitive types. Many utility methods are provided by wrapper classes. To get these advantages we need to use wrapper classes. As they are objects, they can be stored in any of the collection and pass this collection as parameters to the methods.

Features of the Java wrapper Classes:

- Wrapper classes convert numeric strings into numeric values.

- The way to store primitive data in an object.

- The valueOf() method is available in all wrapper classes except Character

- All wrapper classes have typeValue() method. This method returns the value of the object as its primitive type.

The advantage of equity finance for a company – raising money by selling shares – is that this money does not have to be repaid. However, new shareholders usually get to have a say in how the company is run. Despite these rights, equity is often seen as a risky choice for investors as they will lose all their money if the company doesn’t prosper. If it does well, on the other hand, they may see their stake multiply in value many times over.

Debt finance – money raised through loans – must be repaid eventually by a company, usually with interest, but lenders won’t be able to exert as much influence as shareholders over how the company does business. The debt of a reliable company is usually seen as a safe investment, but fixed repayment schedules means that there are few opportunities for large returns.

In direct marketing, there is a direct interaction of the customers with the seller without any intermediaries. Here, the role of the intermediaries is nil. The medium used is more direct using telephone, mail, internet where the seller can directly reach out to the consumer. Examples of such marketing include telemarketing, email, voicemail marketing, door-to-door selling etc. This kind of marketing is more time saving as the problem of distance which may otherwise exist between the buyer and seller is eliminated and is also cost effective as it minimizes commuting costs.

The interface org.apache.struts.upload.FormFile is used for the struts file upload application. This interface represents a file that has been uploaded by a client. It is the only interface or class in upload package which is typically referenced directly by a Struts application.

This is not specific to Struts in case of DHTML but the two things that are needed in DHTML page is: first, the form needs to specify an enctype of multipart/form-data and second an <input> form control of type file.

Following are the steps to load file in DHTML:

- Creating a bean

- Writing the ActionClass.

- Mapping the bean in struts-config.xml

- Defining actionmapping

- Developing the DHTML page.

Asc() - Returns ANSI Character Code 

Chr() - Returns Character from ANSI Code 

InStr() - Find a string within another 

InStrRev() - Find a string within another (Reverse) 

LCase() - Convert a string to lowercase 

Left() - Crops a string from left 

Len() - Determine the length of a string 

LTrim() - Remove leading spaces from a string 

Mid() - Crops a string 

Replace() - Replace a substring within a string 

Right() - Crops a string from right 

RTrim() - Remove trailing spaces from a string 

Space() - Creates a string with the specified number of spaces 

StrComp() - Compare two strings 

String() - Creates a repeated character string 

StrReverse() - Reverse the characters of a string 

Trim() - Remove both leading and trailing spaces from a string 

UCase() - Convert a string to uppercase