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3 years ago

I have to write this in Java, but i've never even learned it before and i'm completely lost

Computers and Technology

1 answer:

Varvara68 [4.7K]3 years ago

7 0

Answer:

private void printArray(int[] arr){ //0

System.out.print("["); //1

for(int k : arr){ //2

System.out.print(k + ", "); //3

}

System.out.println("]"); //4

}

Explanation:

This method should get you started. Your teacher may want a different format or a different type of loop. If you haven't learned for loops yet don't use them that'd be suspicious ;)

What I did:

0: This is the method heading with one parameter for the 1D array. If you need to access it in a different class change private to public.

1: This prints the [ with no line break

2: This is an enhanced for loop to iterate through each element in a 1D array. Alternatively, a normal for loop looks like this:

for (int i = 0; i < arr.length; i++)

instead of retrieving the variable with the enhanced for, you'd have to use arr[i] instead of k in this scenario.

3: This prints the value in each pass of the loop along with a comma and a space.

4: This adds the ] with a line break when the loop is completed

Hope this helps you get started :D comment if you need further help

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Do the following SQL questions. The resulting columns must all have descriptive names. You must show the result of the query. Fo

Maslowich

Answer:

We can use CREATE command to create tables with columns having descriptive names

Explanation:

Firstly, create a table using CREATE command in SQL. The syntax is as follows:

CREATE TABLE [table_name]

(

[col_name] [datatype]),

[col_name] [datatype])

)

Once the table is created, we can insert the data into table using INSERT command. It's syntax is as follows:

INSERT INTO table_name VALUES('', '', '')

if datatype is string, values must be entered within single quotes. If datatype is int, values are entered directly without using quotes.

Now, you can select the data from the table using SELECT command. It's syntax is as follows:

SELECT column-list FROM table_name

If you want to filter rows according to conditions, you can use WHERE command.

I have created sample table and inserted some data into it. Now, I applied some queries on it to select data from the table.

I have written in a text file and attached the same. Please find. Thank you!

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3 years ago

____ is the encapsulation of method details within a class.

Anestetic [448]

Implementation hiding is the encapsulation of method details within a class. Implementation can be interpreted as those specifications which can be altered without altering the correctness of an application. Wrapping data/methods within classes (descriptions of the way all objects of this type will look/act) in combination with implementation hiding is called encapsulation. Information users need to know about behaviors should be available without dependence on implementation specifications.

6 0

3 years ago

Piecewise functions are sometimes useful when the relationship between a dependent and an independent variable cannot be adequat

Andru [333]

Answer:

//Set a piecewise function v(t).

function v = vpiece(t)

//Set the condition first for t.

if ((0<=t)and(t<=8)) //Set if condition

// first equation of velocity.

v = 10*t^2 - 5*t;

//Set the condition second for t.

elseif((8<=t)and(t<=16)) //Set elseif condition

//second equation of velocity.

v = 624 - 5*t;

//set the condition third for t.

elseif((16<=t)and (t<=26)) //Set elseif condition

//third equation of velocity.

v = 36*t + 12*(t - 16)^2;

//Set the fourth condition for t.

elseif t>26

//fourth equation of velocity.

v = 2136*exp(-0.1*(t-26));

//Last condition.

else

//fifth equation of velocity.

v = 0;

//End of the function v.

end

//set a variable and initialize it to 0.

a=0;

//Starting the loop.

for j = -5: 0.5 : 70

//Increment the value of a by 1.

a = a + 1;

t(a) = j;

v(a) = vpiece(t(a));

//End of for loop.

end

//Plot the graph between t and v.

plot(t,v)

//Write the label for the x-axis.

xlabel('t')

//Write the label for the y-axis.

ylabel('velocity')

//Write the title of the plot.

title('Plot of velocity vs t')

Explanation:

Firstly, we set the piecewise method.

Then we set the first condition, after that we apply the condition of velocity.

Then we set the second condition, after that we apply the condition of velocity.

Then we set the third condition, after that we apply the condition of velocity.

Then we set the fourth condition, after that we apply the condition of velocity.

Then we set the last or fifth condition, after that we apply the condition of velocity.

Then we set the variable "a" to 0.

Then start the loop and increase the value by 1.

And after all, we write the title of the plot.

8 0

3 years ago

Aika has several labeled folders for different parts of his research. What is the MOST likely reason he does this? He wants to m

kobusy [5.1K]

Answer:

He wants to easily and quickly find specific bits of research that cover certain topics.

Explanation:

Remember, a research work typically has these 6 (six) components:

The Abstract.
Introduction
Methodology
Results
Discussion
References.

Thus, Aika's decision to label several folders for different parts of his research would make it easier and quicker for him to find specific bits of research that cover certain topics, instead of spending time looking for topics.

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3 years ago

¿Cuántos megabytes (MB) de capacidad tiene una memoria USB de 16 GB? el que me diga por que le doy una coronita

-Dominant- [34]

Answer:

16,384MB

Explanation:

1GB contiene 1024MB de capacidad. Si multiplicamos esto por 16 veemos que 16GB es igual a 16,384MB. Este seria el espacio exacto, aunque se dice que 1GB tiene 1000MB. Eso es por que la palabra Giga significa x1000 y el numero binario entero mas cercano a 1000 es 1024. Entonces los ingenieros usan este numero para representar la cantidad de espacio en un GB que tambien seria $2^{10}$

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3 years ago