When a partition is formatted with a file system and assigned a drive letter it is called a volume?

A programmer wrote the program below. The program uses a list of numbers called numList. The program is intended to display the

Nezavi [6.7K]

Answer:

The conclusion is incorrect; using the test case [0, 1, 4, 5] is not sufficient to conclude the program is correct.

Explanation:

From the code snippet given, we cannot conclude that the test case is sufficient.

One of the reasons is because the test case contains only integer variables.

Tests need to be carried out for other large and floating points numerical data types such as decimal, double, float, etc. except that when it's known that the inputs will be of type integer only else, we can't rush into any conclusion about the code snippet

Another reason is that input are not gotten at runtime. Input gotten from runtime environment makes the program flexible enough.

Lastly, the array length of the array in the code segment is limited to 4. Flexible length needs to be tested before we can arrive at a reasonable conclusion.

8 0

3 years ago

Please convert this for loop into while loop

spayn [35]

Answer:

The code segment was written in Python Programming Language;

The while loop equivalent is as follows:

i = 1

j = 1

while i < 6:

while j < i + 1:

print('*',end='')

j = j + 1

i = i + 1

print()

Explanation:

(See attachment for proper format of the program)

In the given lines of code to while loop, the iterating variables i and j were initialised to i;

So, the equivalent program segment (in while loop) must also start by initialising both variables to 1;

i = 1

j = 1

The range of the outer iteration is, i = 1 to 6

The equivalent of this (using while loop) is

while ( i < 6)

Not to forget that variable i has been initialized to 1.

The range of the inner iteration is, j = 1 to i + 1;

The equivalent of this (using while loop) is

while ( j < i + 1)

Also, not to forget that variable j has been initialized to 1.

The two iteration is then followed by a print statement; print('*',end='')

After the print statement has been executed, the inner loop must be close (thus was done by the statement on line 6, j = j + 1)

As seen in the for loop statements, the outer loop was closed immediately after the inner loop;

The same is done in the while loop statement (on line 7)

The closure of the inner loop is followed by another print statement on line 7 (i = i + 1)

Both loops were followed by a print statement on line 8.

The output of both program is

*

3 0

3 years ago

One reason for using social media is to develop social and professional contacts. True or false?

xxMikexx [17]

I would say this answer is true.

7 0

3 years ago

Read 2 more answers

Choose all items that represent examples of good website accessibility.

aksik [14]

Answer:

B,C, E

Explanation:

I did it on edge :)

5 0

3 years ago

Read 2 more answers

Given an array as follows

slava [35]

Answer:

1) Method calcTotal:

public static long calcTotal(long [][] arr2D){
long total = 0;
for(int i = 0; i < arr2D.length; i++ )
{
for(int j = 0; j < arr2D[i].length; j++)
{
total = total + arr2D[i][j];
}
}
return total;
}

Explanation:

Line 1: Define a public method calcTotal and this method accept a two-dimensional array

Line 2: Declare a variable, total, and initialize it with zero.

Line 4: An outer for-loop to iterate through every rows of the two-dimensional array

Line 6: An inner for-loop to iterate though every columns within a particular row.

Line 8: Within the inner for-loop, use current row and column index, i and j, to repeatedly extract the value of each element in the array and add it to the variable total.

Line 12: Return the final total of all the element values as an output

Answer:

2) Method calcAverage:

public static double calcAverage(long [][] arr2D){
double total = 0;
int count = 0;
for(int i = 0; i < arr2D.length; i++ )
{
for(int j = 0; j < arr2D[i].length; j++)
{
total = total + arr2D[i][j];
count++;
}
}
double average = total / count;
return average;
}

Explanation:

The code in method calcAverage is quite similar to method calcTotal. We just need to add a counter and use that counter as a divisor of total values to obtain an average.

Line 4: Declare a variable, count, as an counter and initialize it to zero.

Line 11: Whenever an element of the 2D array is added to the total, the count is incremented by one. By doing so, we can get the total number of elements that exist in the array.

Line 16: Use the count as a divisor to the total to get average

Line 18: Return the average of all the values in the array as an output.

Answer:

3) calcRowAverage:

public static double calcRowAverage(long [][] arr2D, int row){
double total = 0;
int count = 0;
for(int i = 0; i < arr2D.length; i++ )
{
if(i == row)
{
for(int j = 0; j < arr2D[i].length; j++)
{
total = total + arr2D[i][j];
count++;
}
}
}
double average = total / count;
return average;
}

Explanation:

By using method calcAverage as a foundation, add one more parameter, row, in the method calcRowAverage. The row number is used as an conditional checking criteria to ensure only that particular row of elements will be summed up and divided by the counter to get an average of that row.

Line 1: Add one more parameter, row,

Line 8-15: Check if current row index, i, is equal to the target row number, proceed to sum up the array element in that particular row and increment the counter.

5 0

3 years ago