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mixer [17]
3 years ago
14

What's a checked exception?

Computers and Technology
2 answers:
olga55 [171]3 years ago
8 0

Answer:

The answer is option A "One that the Java class library already checks for, so our programs don't have to worry about checked exceptions"

Explanation:

A checked exception is a sort of special case that should be either gotten or proclaimed in the method in which it is declared.

In the Java class chain of importance, a special case is a checked exception in the event that it acquires from java.lang.Throwable, however not from java.lang.RuntimeException or java.lang.Error. All the application or business rationale exceptions should be checked special cases.

It is conceivable that a strategy proclaims that it can toss a special case, however it doesn't. In any case, the guest needs to manage it. The checked exception announcement has a domino impact. Any strategies that will utilize the past strategy will likewise need to deal with the checked exception, etc.

So the compiler for the Java programming language checks, at gather time, that a program contains overseers for all application exceptions, by examining every method body. In the event that, by executing the method body, an exception can be tossed to the guest, that special case should be announced. How does the compiler know whether a method body can toss an exception? That is simple. Inside the method body, there are calls to different strategies; the compiler takes a gander at every one of their strategy signature, what exceptions they proclaimed to declare.

Snezhnost [94]3 years ago
6 0

Answer:

The correct answer is C)

Explanation:

Within Java, a checked exception is one that is checked by the compiler.

When a code within a method generates a checked exception, one of two things must happen:

a) the method should take care of the exception or

b) it should indicate the exception using <em>throws</em> keyword.

Cheers

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Plato :
ddd [48]

Answer:

filler content

Explanation:

Isabel must use some sort of filler content while creating a wireframe that she is up with. For the banner, she can make use of the placeholder, and for the text, she can make use of the lorem ipsum. Also, if the wireframe is low fidelity then only she can use above. And if the wireframe is high fidelity then she should use the original banner and text.

3 0
3 years ago
Read 2 more answers
Write a script that will read the file, (strip the carriage returns), create a dictionary of names and favorite radishes and cre
amm1812

Answer:

python code below:

names={}#first dictionary for names and favorite

favor={}#radish type and how many are favorite

f=open("raddish.txt")#opening file

for i in f:#for each line

j=i.strip().split("-")#splitting base on -

names[j[0].strip()]=j[1].strip()#getting first dictionary

if j[1].lower().strip() in favor:#counting the favorite elements

favor[j[1].lower().strip()]+=1

else:

favor[j[1].lower().strip()]=1

print ("First Dictionary",names)#printing the names

print("second dictionary:",favor)#printing the favorite numbers

f.close()#closing file

Explanation:

The program was implemented using python programming language.

Its operation is to read the file, (strip the carriage returns), create a dictionary of names and favorite radishes and create a dictionary of each radish type and the number of people who chose that as their favorite.

It returns as output the names of people entered for the Radishes.

See attachment for screenshot.

8 0
3 years ago
What is the LER for a rectangular wing with a span of 0.225m and a chord of 0.045m
ch4aika [34]

Calculate LER for a rectangular wing with a span of 0.225m and a chord of 0.045m. The weight of the glider is 0.0500 Newtons. (Note: the wing span is the width of the wing and is measured from wing tip to wing tip, or perpendicular to the fuselage. The wing chord is the length of the wing measured parallel or along the length of the fuselage.)

Answer:

Area of rectangular wing = span × chord = 0.225×0.045= 0.010125m2

LER = Area/weight = 0.010125/0.0500 = 0.2025

4 0
3 years ago
Write the application of computer in education and communication​
daser333 [38]

Answer:

Technology has profoundly changed education in many ways. Technology has greatly expanded access to education. In medieval times, books were rare and only an elite few had access to educational opportunities. Individuals had to travel to centers of learning to get an education. Today, massive amounts of information (books, audio, images, videos) are available at one’s fingertips through the Internet, and opportunities for formal learning are available online worldwide through online learning, podcasts, traditional online degree programs, and more. Access to learning opportunities today is unprecedented in scope thanks to technology.

Technology is a gift of God. After the gift of life, it is perhaps the greatest of God's gifts. It is the mother of civilizations, of arts, and sciences. Technology has certainly changed the way we live. It has impacted different facets of life and redefined living. Undoubtedly, technology plays an important role in every sphere of life. Several manual tasks can be automated, thanks to technology. Also, many complex and critical processes can be carried out with ease and greater efficiency with the help of modern technology. Thanks to the application of technology, living has changed and it has changed for the better. Technology has revolutionized the field of education. The importance of technology in schools cannot be ignored. In fact, with the onset of computers in education, it has become easier for teachers to impart knowledge and for students to acquire it. The use of technology has made the process of teaching and learning all the more enjoyable.

Technology has also begun to change the roles of teachers and learners. In the traditional classroom, the teacher is the primary source of information, and the learners passively receive it. This model of the teacher as the “sage on the stage” has been in education for a long time, and it is still very much in evidence today. However, because of the access to information and educational opportunity that technology has enabled, in many classrooms today we see the teacher’s role shifting to the “guide on the side” as students take more responsibility for their learning using technology to gather relevant information. Schools and universities across the country are beginning to redesign learning spaces to enable this new model of education, foster more interaction and small group work, and use technology as an enabler.

Explanation:

7 0
3 years ago
The file includes 4993 tweets including the keyword 'election'. Each tweet is represented in a separate line. Write a program to
Likurg_2 [28]

Answer:

import re

with open("../../Downloads/Tweets.txt","r", encoding="utf-8") as tweets:

   myfile = tweets.readlines()

   for item in myfile:

       item = item.rstrip()

       mylist = re.findall("^RT (.*) ", item)

       if len(mylist) !=0:

           for line in mylist:

               if line.count("#") >=1:

                   ln = line.split("#")

                   dm = ln[1]

                   print(f"#{dm}")

Explanation:

The python source code filters the document file "Tweets" to return all tweets with a hashtag flag, discarding the rest.

7 0
3 years ago
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