2.8 Code Practice: Question 2

Which are examples of hardware? Select 3 options.

umka21 [38]

Answer: OS(Operating System), CPU, And The Program That you use to view email

6 0

3 years ago

Write a program that asks the user for several days' temperatures and computes the average temperature for that period and how m

elena-14-01-66 [18.8K]

Answer:

#section 1

no_of_days= int(input('How many days are we geting the average for: '))

tem=[]

for i in range(no_of_days):

a= int(input('Enter temperaure: input ' + str(i+1)+' :'))

tem.append(a)

#section 2

average = round(sum(tem)/len(tem),2)

print('The Average is ',average)

gdays=[]

for i in tem:

if i > average:

gdays.append(i)

print('The following days are greater than the average: ',gdays)

Explanation:

The above code is written in python 3

#section 1:

An input is gotten for number of days that is to be used in the calculation, and an array is created to hold the temperature that will be inputted into the program.

A range of values from [0 - (no_of_days - 1)] is created from the number of days entered, this is done so that the FOR loop can iterate through every number and call for inputs.

The FOR loop prompts the user for an input based on the range and passes that input to an integer data type before appending it to the tem array.

#section 2:

The sum of the new list and the length is used to calculate the average and the it is rounded up to 2 DP, The average is then printed to the screen.

Another FOR loop is used to check which of the days are greater than the average and passes it to another array (gdays), this array is also printed to the screen.

check the attachment to see how the code works.

4 0

4 years ago

Majken is turning 18 years old soon and wants to calculate how many seconds she will have been alive.

Afina-wow [57]

Answer:

I choose D :)

Explanation:

7 0

2 years ago

These are code parts which can be collapsed or extended

skelet666 [1.2K]

Answer:

?????????? are there any options

3 0

3 years ago

Create a method called nicknames that passes an array as a parameter. Inside the method initialize it to hold 5 names of your ch

Gre4nikov [31]

<h2>Answer:</h2>

//======METHOD DECLARATION=========//

//method name: nicknames

//method return type: void

//method parameter: an array reference

public static void nicknames(String [] names){

//initialize the array with 5 random names

names = new String[] {"John", "Doe", "Brian", "Loveth", "Chris"};

//using an enhanced for loop, print out the elements in the array

for(String n: names){

System.out.print(n + " ");

}

<h2>Explanation:</h2>

The program is written in Java. It contains comments explaining important parts of the code. Kindly go through these comments.

A few things to note.

i. Since the method does not return any value, its return type is void

ii. The method is made public so that it can be accessible anywhere in and out of the class the uses it.

iii. The method is made static since it will most probably be called in the static main method (at least for testing in this case)

iv. The method receives an array of type String as parameter since the names to be stored are of type String.

v. The format of initializing an array manually should follow as shown on line 7. The new keyword followed by the array type (String), followed by the square brackets ([]) are all important.

vi. An enhanced for loop (lines 9 - 11) is a shorthand way of writing a for loop. The format is as follows;

=> The keyword for

=> followed by an opening parenthesis

=> followed by the type of each of the elements in the array. Type String in this case.

=> followed by a variable name. This holds an element per cycle of the loop.

=> followed by a column

=> followed by the array

=> followed by the closing parenthesis.

=> followed by a pair of curly parentheses serving as a block containing the code to be executed in every cycle of the loop. In this case, the array elements, each held in turn by variable n, will be printed followed by a space.

A complete code and sample output for testing purposes are shown as follows:

==================================================

public class Tester{

//The main method

public static void main(String []args){

String [] names = new String[5];

nicknames(names);

}

//The nicknames method

public static void nicknames(String [] names){

names = new String[] {"John", "Doe", "Brian", "Loveth", "Chris"};

for(String n: names){

System.out.print(n + " ");

}

==================================================

<h2>Output:</h2>

John Doe Brian Loveth Chris

NB: To run this program, copy the complete code, paste in an IDE or editor and save as Tester.java

6 0

3 years ago