in object-oriented languages, which type of cast is considered safe and does not need to be made explicit?

Answers

Answer 1

In object-oriented languages, the type of cast that is considered safe and does not need to be made explicit is called an upcast.

An upcast is a cast from a derived class to its base class. Since every derived class is a type of its base class, an upcast is always valid and does not result in any loss of information. Therefore, it is safe to assume that an upcast can be made implicitly without the need for an explicit cast. This is why most object-oriented languages allow upcasts to be made implicitly, without any extra syntax. However, downcasts (casts from a base class to a derived class) are not always safe and may require an explicit cast to be performed.

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Related Questions

HELP I WILL GIVE YOU BRAINLIST PLS HELP
What do you think is the most interesting career within the field of 2D art? Why?

Answers

Answer:

being a cartoonist

Explanation:

because you can draw different characters  in other styles

Answer: A graphic designer

Explanation: Graphic designers can make a bunch of things online.

The area around 2-D or 3-D shapes which define the shapes; the
background. *
Organic Shape
Position
O Orthogonal
O Negative Space

Answers

The answer is Negative space

Answer:

negative space

Explanation:

is my drawing good enough to submit to my teacher?
also 50 points because i have 900

is my drawing good enough to submit to my teacher?also 50 points because i have 900

Answers

Answer:

YES!

Explanation:

According to the text, George Balanchine's The Nutcracker® is a "complex" ballet.
What evidence in the text supports the idea that this ballet is complex?

Answers

Answer:

bro you gotta give us the evidence

Explanation:

how else are we supposed to help you without evidence.

in the disney film "aladdin", aladdin steals food from the market because he and abu are hungry. he is a "street rat", or someone whom no one trusts or would hire for a job.

Answers

The Disney film "Aladdin," Aladdin steals food from the market because he and his monkey companion, Abu, are hungry.

Aladdin is portrayed as a "street rat," which implies that he is an orphaned and impoverished individual living on the streets. Due to his social status and lack of opportunities, he resorts to stealing to survive. The film highlights Aladdin's struggle for survival and his yearning for a better life.

The depiction of Aladdin as a "street rat" serves as a narrative device to emphasize his underprivileged background and the challenges he faces in a society where he is marginalized.

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design a stack for integers that supports push, pop, top and retrieving the minimum element in constant time.

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To design a stack for integers that supports push, pop, top, and retrieving the minimum element in constant time, we can use two stacks. One stack will store the actual elements, and the other stack will keep track of the minimum element at each point in time.

To implement this, we can define a class called "MinStack" with three member variables: a regular stack called "stack," a second stack called "minStack," and an integer called "minVal" that stores the current minimum value.

The "push" operation will first push the element onto the regular stack and then check if it is smaller than the current minimum value. If it is, then it will push the element onto the minStack and update the minVal variable. Otherwise, it will just push the current minimum value onto the minStack again.

The "pop" operation will pop the top element from both stacks, and if the popped element from the minStack is equal to the current minimum value, then we need to update the minVal variable by popping again from the minStack.

The "top" operation will simply return the top element from the regular stack.

The "getMin" operation will return the top element from the minStack, which will always be the current minimum value.

Here is the implementation in Python:

```
class MinStack:
   def __init__(self):
       self.stack = []
       self.minStack = []
       self.minVal = float('inf')
       
   def push(self, x: int) -> None:
       self.stack.append(x)
       if x <= self.minVal:
           self.minStack.append(x)
           self.minVal = x
       else:
           self.minStack.append(self.minVal)
   
   def pop(self) -> None:
       self.stack.pop()
       self.minStack.pop()
       if not self.minStack:
           self.minVal = float('inf')
       else:
           self.minVal = self.minStack[-1]
   
   def top(self) -> int:
       return self.stack[-1]
   
   def getMin(self) -> int:
       return self.minStack[-1]
```

This implementation will allow us to perform all operations (push, pop, top, and getMin) in constant time.

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Can I unmark someone brainliest when I already marked them as brainliest?

Answers

Answer:

I don't think you can't buddy

donald trump won a razzie award for worst supporting actor for his cameo appearance in which film?

Answers

In the year 1991, Donald Trump won a Razzie Award for Worst Supporting Actor for his cameo appearance in the film "Ghosts Can't Do It".

The film was a fantasy comedy-drama film directed by John Derek and starring Anthony Quinn and Bo Derek. Trump's cameo appearance in the film was a brief part in which he played himself, in a scene where he attended a party thrown by Quinn's character. The scene was only a few minutes long, and Trump did not have any lines, but he was seen standing in the background.

The film received largely negative reviews, and Trump's cameo was no exception. Critics were particularly unimpressed by Trump's lack of charisma and presence in the scene, and his performance was seen as one of the worst of the year. As a result, Trump was nominated for and won a Razzie Award for Worst Supporting Actor.

Though Trump has not acted in any other films since then, he has been the focus of many other films, documentaries, and television shows. His life and career have been the subject of much scrutiny and debate, and his continued presence in the public eye has made him one of the most recognizable figures in the world.

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During the Baroque Era, instrumental music____.

eliminated new compositions for vocals
increased in popularity
remained unchanged
was poorly accepted by audiences
became demure and simplistic

Answers

During the Baroque Era, instrumental music increased in popularity.

What is Baroque Era?

Baroque Era was an era  that begins in the year 1600 and lasted till 1750. During this era  different type of music, sculpture and art work was created.

The reason why instrumental music tend to increase in popularity during the Baroque Era was that different musician were making use of  musical styles or music instrument that will gives their music a sweet melody.

During this era the following  music style were introduce by music artist:

Opera musicConcerto musicSonata music

Therefore during the Baroque Era, instrumental music increased in popularity.

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What mood would most closely fit a color scheme in a fashion RTW collection
consisting of red, yellow, blue, and green colors in their saturated states?

A) somber
B) playful
C) mysterious
D) sophisticated

Answers

Answer:

playful because those colors really bring out a child like feeling

I feel A wouldn't best.

Wassily Kandinsky, a Russian painter, and art theorist, one said, "There is
no must in art because it's free.". Expound his saying in 5 to 15 sentences.​

Answers

Answer:

'To me there is no art because it is free. I see at as it's own world to explore and dominate. I let my art do its own thing and let it fly. Art can choose itself. You just have to let it go.'

This icon means recover lost data send data input data filter data​

This icon means recover lost data send data input data filter data

Answers

Answer:

Filter data is the correct answer.

Line is defined by a ___ dot

Answers

Answer:

Line is defined by a dash doted lines

Explanation:

I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?

Answers

Answer:

an echo

Explanation:

An echo speaks without a mouth and hears without ears. It comes alive with wind. Hence, 'An echo' is the required answer to this riddle

Answer:

the answer is an echo

Explanation:

Can you provide one paragraph analyzing in your own words
explaining how these artworks (Jewish, Early Christian, Islamic
Art, and Early Medieval Art) illustrate their time period, using
terminology a

Answers

Jewish, Early Christian, Islamic Art, and Early Medieval Art are reflective of their respective time periods, showcasing unique characteristics and influences. These artworks serve as visual representations of the religious, cultural, and historical contexts in which they were created.

Jewish art encompasses various artistic expressions that evolved over centuries, reflecting the religious beliefs, rituals, and cultural practices of the Jewish people. It often features symbols and themes related to Judaism, such as the Star of David and depictions of biblical stories. Early Christian art emerged during the first few centuries of Christianity and portrays religious narratives, saints, and symbols. It demonstrates a transition from classical influences to a distinct Christian iconography, incorporating elements from Roman, Greek, and Byzantine art.

Islamic art, influenced by Islamic teachings and cultural traditions, emphasizes calligraphy, geometric patterns, and decorative motifs. It is primarily non-representational due to religious restrictions on depicting figures. Islamic art showcases the sophistication of scientific, mathematical, and artistic achievements of the Islamic civilization.

Early Medieval art, also known as the Dark Ages, was characterized by the decline of the Roman Empire and the spread of Christianity. It features intricate metalwork, illuminated manuscripts, and architectural elements. These artworks often convey a sense of spirituality, religious devotion, and the fusion of various cultural influences.

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which ballpark will become the first site to host games in every round of a world baseball classic tournament?

Answers

The Tokyo Dome in Tokyo, Japan became the first ballpark to host games in every round of a World Baseball Classic tournament in 2017.

The Tokyo Dome is a large indoor sports arena located in Tokyo, Japan. It was opened in 1988 and has a seating capacity of up to 55,000 spectators, making it one of the largest indoor venues in the world. The dome is known for hosting a wide range of events, including concerts, sports competitions, and trade shows. In addition to being a regular venue for baseball games in Japan, the Tokyo Dome has also hosted games for the World Baseball Classic and other international baseball tournaments.

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Will you guys give me tips to help me study?
Websites
Flashcards
Etc

Answers

Answer:

The best way to study is to test your memory in my opinion with flash cards or remember vocabulary words you don't know

for example, there is a cool fact that weight lifting while studying actually helps you remember stuff more.

but that was a fact I read in a book

Enjoy your day!

Which instrument is a reed woodwind?
A.)flute
B.)clarinet
C.)recorder
D.)whistle

Answers

Answer:

A.) flute

Explanation:

It is B, because it uses a reed and it is a woodwind hope this helps

hey can someone draw me a picture of these words plzzzzzzzzzzzzzzz

Answers

Answer:

what words

Explanation:

Answer:

Which words!?

Explanation:

.........................

What elements are considered parts of the development triangle for expanded physical education?

Answers

The elements of the development triangle for expanded physical education are physical fitness, motor skills development, and health education.

The development triangle for expanded physical education consists of three key elements:

1. Physical Fitness: This element focuses on improving overall physical fitness levels, including cardiovascular endurance, muscular strength, flexibility, and body composition. It involves engaging in activities that promote physical health and well-being, such as aerobic exercises, strength training, and flexibility exercises.

2. Motor Skills Development: This element emphasizes the acquisition and refinement of fundamental motor skills, including locomotor skills (running, jumping, hopping), object control skills (throwing, catching, kicking), and stability skills (balance, coordination). Motor skills development enables individuals to engage in various physical activities with efficiency, control, and accuracy.

3. Health Education: This element encompasses the knowledge and understanding of essential health-related concepts and behaviors. It includes topics such as nutrition, stress management, injury prevention, body systems, and personal hygiene. Health education equips individuals with the necessary knowledge to make informed decisions about their well-being and maintain a healthy lifestyle.

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can someone help me with this please

can someone help me with this please
can someone help me with this please

Answers

Answer: It is capturing the human experience

Explanation: The artist seems to be showing what the little girl is looking at.

the short line 12 yards in front of the center of the goal is used for

Answers

Answer:

penalty

Explanation:

Maximum length is of a soccer field is 120 yards (360 feet) long and 75 yards (225 feet) wide, but

varies by location, competition, age and skill level. Check with the local Recreation Center for any

dimension modifications. Since most Recreation Centers and/or Athletic complexes in St Paul

already have Football fields, Soccer and Lacrosse will play on them and will be modify accordingly.

On fields that do not have football fields established and the field will be lined specifically for

Lacrosse, be sure to check with the Athletic office for the specific dimensions needed for the level

of play that will be using the field.

what is the purpose of advertising magazines?

Answers

Answer:

Magazines provide a wealth of information, inspiration and creative ideas for readers. The information given to the reader may drive them to go out and visit stores/businesses and search online to find out more.

TARGETED AUDIENCE

Magazines are created to target niche audiences depending upon the topic or theme. This means advertisements within each spread are relevant to the content of the magazine. This guarantees your advertisements will be in front of a target audience that cares about products like yours, since the reader considers the magazine’s content important.

Explanation:

To advertise
Literally point blank
Blank literally point
Blank point literally
Facts
Economists
Meth
Pcp
Santa Claus
What was the question again?

PLEASE HELP MEE Discuss two visual effects that have been used.

Answers

Answer:

compositing, and motion capture.

Explanation:

If you were creating an art work where you wanted something to be emphasized what could you do as an artist to bring attention to that area? *

Answers

                                                            Hello!

In order to set emphasize a certain section of your artwork, you can set brighter colors in the area. If you don't want lighter colors, then you can add a larger variety of colors. Deepen the amount of detail you put into it and even it out along the entire piece. There are several ways to do this, you just have to find whatever matches up with your art. Be as creative as possible and remember, there is no limit to what you can do.

                                             Have a fantastic day hon.

                                                   - A fellow Artist.

Early hip hop djs used reggae, disco, electronic, punk, funk, soul, and what other music?

Answers

Early hip-hop DJs used reggae, disco, electronic, punk, funk, soul, and electronic music.

Hip-hop music also referred to as rap music or disco rap, is a style of contemporary music that first appeared in New York City in the 1970s. It consists of chanting a rhythmic and rhyming speech while listening to exaggerated rhythmic music that frequently accompanies rapping. It emerged as a component of hip-hop culture, a community characterized by four essential stylistic components: MCing/rapping, DJing/turntable scratching, breakdancing, and graffiti writing. Rhythmic beatboxing and the sampling of bass lines or beats from albums are additional components. Hip hop, though frequently used to refer only to rapping, more accurately describes the complete subculture. Although singing is not a necessary element of hip-hop music, the terms "hip-hop music" and "rap music" are sometimes used interchangeably.

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Individualism Discussion Choose one of the following topics: collective good. How do you see these ideas expressed in art, literature, and music? Use at least one example each from art literature, and

Answers

Collective good is the notion that the action of the individual should always be directed towards a positive end that serves the greater good, ultimately benefiting the community.

The theme of collective good can often be seen in art that highlights the importance of community belonging, in literature that focuses on the power of collective action, and in music that promotes a sense of shared identity.

In art, the French Impressionist artist Pierre-Auguste Renoir often focused on how individuals depended on each other for unity and collective well-being. In literature, Victor Hugo's Les Miserables is a great example of collective action leading to positive change for the greater good. In music, songs such as Imagine by John Lennon focus on how people of all beliefs and backgrounds can come together and work together for the common good.

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The first accented beat of each metric pattern is known as the.

Answers

the first accented beat of each metric pattern is known as "the onbeat"

In the mosaic program of San Vitale, how is the importance of Bishop Maximianus signaled?
A) By his magnificent crown
B) By the hand of God
C) By the other figures
D) By a naming inscription

Answers

The importance of Bishop Maximianus in the mosaic program of San Vitale is signaled by a naming inscription. (Option D)

In the mosaic program of San Vitale, the importance of Bishop Maximianus is signaled by a naming inscription. This means that his name or a title associated with him is inscribed or written directly on the mosaic artwork. This inscription serves to identify and emphasize the presence and significance of Bishop Maximianus within the composition.

The naming inscription in the mosaic program of San Vitale is a common technique used in Byzantine art to highlight the identities of important figures and individuals depicted in the artwork. It provides a clear visual indication of the person's role or significance within the context of the mosaic. By including a naming inscription for Bishop Maximianus, the artists and patrons of the artwork intended to draw attention to his position and authority, ensuring that viewers would recognize and understand his importance within the religious and cultural context of San Vitale.

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What is the name of the piece above?

What is the name of the piece above?

Answers

Answer:

Explanation:

Piccaso

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