Interview Questions

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 

Anonymous FTP enables users to connect to a host without using a valid login and password. Usually, anonymous FTP uses a login called anonymous or guest, with the password usually requesting the user's ID for tracking purposes only. Anonymous FTP is used to enable a large number of users to access files on the host without having to go to the trouble of setting up logins for them all. Anonymous FTP systems usually have strict controls over the areas an anonymous user can access

Error-first callbacks are used to pass errors and data as well. You have to pass the error as the first parameter, and it has to be checked to see if something went wrong. Additional arguments are used to pass data.

fs.readFile(filePath, function(err, data) {
if (err) {
// handle the error, the return is important here
// so execution stops here
return console.log(err)
}
// use the data object
console.log(data)
})

Capital Adequacy Ratio (CAR) is also known as Capital to Risk (Weighted) Assets Ratio (CRAR), is the ratio of a bank's capital to its risk.

1. The capital adequacy ratio (CAR) is a measure of a bank's capital.

2. It is used to protect depositors and promote the stability and efficiency of financial systems around the world.

3. National regulators track a bank's CAR to ensure that it can absorb a reasonable amount of loss and complies with statutory Capital requirements.

HashCode method return int value. So the Hash value is the int value returned by the hash function .

If you want to do equality check or want to use your object as key in HashMap, we must override hashcode and equals() method.