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3 years ago

Which of the following is NOT a valid method to increase a variable named score by 1?

Computers and Technology

1 answer:

Fofino [41]3 years ago

5 0

Answer:

++score = score + 1

Explanation:

First you have to understand the increment operator;

There are three possible ways to increment the value of variable by 1.

1. post increment

syntax:

name++

it using in expression first then increase the value by 1.

2. Pre increment

syntax:

++name

it increase the value by 1 before it using in expression.

3. simple method

name = name +1

In the question,

option 1: ++score = score + 1

it increase the value of score by 2 because their are two increment is used first for (score + 1) and second ++score.

Therefore, the correct option is a.

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Consider the code below. Note that the catch statements in the code are not implemented, but you will not need those details. As

Dmitriy789 [7]

Missing Part of Question

An exception raised by the instruction in i3 would be caught by the catch statement labeled?

Answer:

e3 and e4.

Explanation:

The instruction tag i3 points to the following code segment

a[++i] = (double) (1 / x); // i3

The code segment above performs arithmetic operation (double)(1/x)

And then assigns the value of the arithmetic operations to an array element a[++I]

It's possible to have one or both of the following two exceptions.

1. Error in Arithmetic Operation

2. Index of Array out of bound

These are both represented in exception tags e3 and e4

catch (ArithmeticException ex) {...} // e3

catch (ArrayIndexOutOfBounds ex) {...} // e4

Exception e3 can arise when the program try to carry out invalid arithmetic operation.

For instance, 1/0 or 0/0.

This will lead to ArithmeticException to be thrown

Exception e4 can arise when the program tries to assign values to an index that's not in an array.

Say, the total index in a given array a is 5.

The index of this array is 0 to 4; i.e. a[0] to a[4]

The moment the program tries to assign values to array element other than the ones I listed above (e.g a[5]) ArrayIndexOutOfBounds exception will be thrown

6 0

3 years ago

A ___________ organizes related commands together, under a tab.

notsponge [240]

A menu bar organizes related commands together, under a tab.
So the answer is b. menu bar

8 0

3 years ago

In which of selye's stages in death a possible outcome?

kkurt [141]

D)Exhaustion
Hope this helps

6 0

3 years ago

Susan is working with an IT company. She has been asked to make sure that all of the functions in the company are in place and p

MrMuchimi

According to Henri Fayol, it can be said that there are five functions of management: planning, organizing, staffing, directing, and controlling. From the description in the question, it seems that Susan should employ the controlling management function – which is defined as ensuring that all the ongoing process are proceeding as planned.

It is clear that this definition is precisely what Susan needs to do to fulfill the request that she was given.

7 0

3 years ago

Describe the three functions of all programming languages and list at least two specific examples of each. The examples can be f

natta225 [31]

Answer:

The 3 functions of all programming languages are Input, Execution and collection.

They are described below:

Explanation:

1. INPUT: An input function can be defined as the function in programming that enables or allows the computer take in an input in form of any data type from the user. The input is either stored directly into a variable identifier or processed. A real-life scenario of an input function is taking in food. The intake of any substance into the mouth can be likened to an input function. We take in food into the body through the mouth and this is processed within the body.

Another example of input in a real-life scenario is dumping your trash into the bin. In this case, the bin is taking your trash bag as an input. An input function in programming can take in integers, strings, character, float, arrays or any kind of data type. An input function allows the user send information to the computer using the keyboard, voice, gestures and other forms of communication.

Examples of Input Function using C# programming language

Console.WriteLine("Please type any input from keyboard and press enter:");

string userName = Console.ReadLine();

From the above example, In the first line of code, the compiler asks the user to input anything via the keyboard.

In the second line of code, the compiler takes in whatever the user has typed and stores it as a variable that we defined as userinput.

Example of Input Function Using Python programming language

print('Type in your name:')

username = input()

The first line of code requests that the user types in his name as an input, then Second line of code takes in the input and stores it as a variable declared as username

2. EXECUTION: execution in programming can be described as the process of performing some kind of operation as instructed by the code. This means that the computer reads through the code and performs any operation that it is asked to perform. such execution operation may include arithmetics, iteration, comparison and as many instructions as written in the code.

A real life scenario of execution is when you press the "play" button of an ipod. The ipod executes the "play" action and plays any song within in.

Another example is pressing 2+2 in your calculator and pressing "=" sign. The calculator performs the 2+2 operation and gives a result.

So we can then say that for every execution there is usually a result.

Examples of Execution Function using C# programming language

class ExecuteExample

{

static void Main(string[] args)

{

 int additionop= 100 + 500; 

}

}

In the code above, execution occurs at the highlighted line. The compiler is asked to add the numbers 100 and 500. The act/process of adding both numbers is called EXECUTION.

Example of Execution Function Using Python programming language

print('Type in your name:')

username = input()

print('We just executed, ' + username )

Continuing from our code in the "input example" . As seen in the code above, execution occurs at the point where the computer prints the output of the user's input. In this case the computer prints "we just executed, + whatever value the user had passed as an input."

3. COLLECTION: Collection in programming is used to describe the process where a computer objects collects and groups similar elements to form a single unit. This collection can be a group of similar data types.

A real life example of a collection is a Queue of people at an ATM. This can define the Queue collection type. usually this kind of collection is considered as a First in First out collection.

Another example of collection can be a List of cars in a Ford car garage. This garage takes in a range of cars that are Ford models only.

Example of Collection Function using C# programming language

List : A List is a type of collection as seen below:

var listcollect = new List<string>(); 

listcollect .Add("fordexplorer");

listcollect .Add("fordedge");

listcollect .Add("fordescape");

listcollect .Add("fordtruck");

foreach (var car in listcollect)

{

//do somethin

}

The above code creates a collection(list) of the car names as a string in a tipper garage, adds elements(items) to this list and iterates through the list. This is a typical example of a collection.

Example of Collection Function using C# programming language

Queue: a queue is a case of colleciton that uses the first in first out idea. The first in first out concept is : first element to be taken in is pushed out first also known as FIFO:

class ExmapleofQueue

{

static void Main(string[] args)

{

 Queue sampleQueue= new Queue(); 

sampleQueue.Enqueue(1);

sampleQueue.Enqueue(2);

sampleQueue.Enqueue(3);

foreach (Object numberel in sampleQueue)

{

//do something

}

}

From example above, we can see that we created a queue called sampleQueue. This holds a queue of integers.

8 0

3 years ago

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