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3 years ago

To guarantee that the member variables of a class are initialized, you use ____.

1 answer:

8 0

A constructor, member initialization lists and also the default member initializer. Here you see all three (in reality you choose one construct per variable).

class A
{
public:
int x = 0;

A() : x(1)
{
x = 2;
}
};

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Jenn wants to assign a value to the favorite car variable: favoriteCar = Toyota but gets an error message. What does she need to

Bumek [7]

Answer:

The correct answer is: Option d: Put Quotation marks around the string.

Explanation:

The names of things or places or cars are usually in the form of words or sentences. The words or sentences are stored in string datatype.

Quotation marks are used to deal with strings in programming languages.

Hence,

The correct answer is: Option d: Put Quotation marks around the string.

3 0

3 years ago

Does a triangle with sides of lengths 1.5 ft, 2.5 ft, and 2 ft form a right triangle? How do you know?

timama [110]

Answer:

Yes, the side lengths of 1.5, 2.5, and 2 ft form a right triangle.

Explanation:

Before we solve this problem, we need to know a couple of things.

In a right triangle, you have two legs and a diagonal line that goes from one leg to the other or from one side to the other. This line is called the hypotenuse. It is the longest side of a right triangle. This length can be calculated by using a special formula that is over a thousand years old.

The formula is called the Pythagorean Theorem.

The formula states that if you square one leg and the other leg and add it up. You get the side of hypotenuse which is squared as well.

Here it is in simple terms: $a^{2} +b^{2} =c^{2}$ .

a and b are your two legs.

C is your hypotenuse.

In this case 1.5 and 2 are your legs and 2.5 is your hypotenuse since it is the longest side.

Before we calculate, there is a converse to the Pythagorean Theorem.

If $a^{2} +b^{2} \neq c^{2}$ , then it is not a right triangle.

Lets make 1.5 for a

and 2 for b.

We know 2.5 is for c.

Here it is.

$1.5^{2} +2^{2} =2.5^{2}$ . The / means it is a fraction.

1.5 squared is 9/4 and 2 squared is 4. Add 4 and 9/4 and you get 25/4 squared. Take the square root of 25/4 and you get 5/2.

5/2 is equal to 2.5, so the Pythagorean Theorem applies to this triangle. Therefore, these side lengths do form a right triangle.

Hope this helps!

3 0

3 years ago

Which of the following is not a valid SQL command? (Points : 2) UPDATE acctmanager SET amedate = SYSDATE WHERE amid = 'J500';

Volgvan

Answer:

UPDATE acctmanager WHERE amid = 'J500';

Explanation:

The statement written above is not valid SQL statement because there is no SET after UPDATE. Update is always used with SET.If you are updating something then you need to specify the value with which that value should be replaced.

UPDATE acctmanager SET amname = UPPER(amname);

This statement does not contains WHERE clause but it will run all the values of amname column will get updated in the table acctmanager.

6 0

3 years ago

I'm skeptical about (b) , is this accurate or the ranges should be listed differently ?

Inessa05 [86]

Answer:

My guess would be C2-C11, But I may be wrong

Imagine a graph

Hope this helps....

4 0

3 years ago

The design strategy that starts with a global view of the entire problem and breaks the problem down into smaller, more manageab

In-s [12.5K]

Answer:

Top down design

Explanation:

Top-down design is an approach that is used to break down the problem into the smaller subpart so that it can be manageable into more clear form.

C programming is the example of a top-down approach while C++ is the example of the bottom-up approach.

The advantages of the top-down design approach are:

1) easy to manage

2) easy to find the error

3) easy to debug

4 0

3 years ago