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2 years ago

Which is the correct notation to specify the following inheritance?

Computers and Technology

1 answer:

Alika [10]2 years ago

4 0

Answer:

Create the student class object which inherit the printinfo() from the abstract class People

Explanation:

Classes in object-oriented programming are blueprints of a defined type of data structure.

An object of an abstract class cannot be instantiated. So, the People class in question, is only inherited by the Student class which able to use the define printinfo() method.

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Which statements describe best practices for aligning text? check all that apply

kiruha [24]

Answer: *use the last column for text with multiple lines.

*use an indent marker to indent the first line of a paragraph.

*use a table if text in multiple columns have multiple lines.

Explanation:

5 0

2 years ago

Read 2 more answers

Writing in Java, write a program that prompts the user to input an integer and then outputs both the individual digits of the nu

larisa [96]

Answer:

//Here is code in java.

import java.util.*;

class Main

{

public static void main (String[] args) throws java.lang.Exception

{

try{

int in;

//scanner class object to read the input

Scanner scr=new Scanner(System.in);

// variable to keep running total

int total=0;

System.out.println("please enter an Integer:");

// read the input first time

in=scr.nextInt();

System.out.print("individual digits of "+in+" is ");

if(in<0)

{

in=-(in);

}

//call the function to print the digits of number

print_dig(in);

System.out.println();

//calculate the sum of all digits

do{

int r=in%10;

total=total+r;

in=in/10;

}while(in>0);

//print the sum

System.out.println("total of digits is: "+total);

}catch(Exception ex){

return;}

}

//recursive function to print the digits of number

public static void print_dig(int num)

{

if(num==0)

return;

else

{

print_dig(num/10);

System.out.print(num%10+" ");

}

Explanation:

Read a number with the help of object of scanner class.if the input is negative

then make it positive number before calling the function print_dig().call

the recursive method print_dig() with parameter "num".It will extract the digits

of the number and print then in the order. Then in the main method, calculate

sum of all the digits of number.

Output:

please enter an Integer:

3456

individual digits of 3456 is 3 4 5 6

total of digits is: 18

please enter an Integer:

-2345

individual digits of -2345 is 2 3 4 5

total of digits is: 14

6 0

2 years ago

What is one effective way for employees to keep their skillsets current?

lys-0071 [83]

They are probably looking for B. subscribing to journals is a good way of keeping up with what's happening in any field.

Of course, a very carefully curated professional network online is great for this too (but they said "personal" so that's not the answer)

Employers generally prefer that employees WORK as often as possible, so even though JUDICIOUS use of social media is a great way to keep current, D isn't the answer either.

Blogging about personal experiences is not necessarily going to teach you anything about work, though blogging professionally can be useful in gathering response from your readership

4 0

2 years ago

Read 2 more answers

For any element in keysList with a value greater than 50, print the corresponding value in itemsList, followed by a space. Ex: I

VARVARA [1.3K]

Answer:

import java.util.Scanner; //mentioned in the question.

public class ArraysKeyValue { //mentioned in the question.

public static void main (String [] args) { //mentioned in the question.

final int SIZE_LIST = 4; //mentioned in the question.

int[] keysList = new int[SIZE_LIST]; //mentioned in the question.

int[] itemsList = new int[SIZE_LIST]; //mentioned in the question.

int i; //mentioned in the question.

keysList[0] = 13; //mentioned in the question.

keysList[1] = 47; //mentioned in the question.

keysList[2] = 71; //mentioned in the question.

keysList[3] = 59; //mentioned in the question.

itemsList[0] = 12; //mentioned in the question.

itemsList[1] = 36; //mentioned in the question.

itemsList[2] = 72; //mentioned in the question.

itemsList[3] = 54;//mentioned in the question.

// other line to complete the solution is as follows--

for(i=0;i<(keysList.length);i++) //Loop to access all the element of keysList array variable.

{// open for loop braces

if(keysList[i]>50) // compare the value of keysList array variable with 50.

System.out.println(itemsList[i]); // print the value

}// close for loop braces.

}// close main function braces.

} //close the class braces.

Output:

Explanation:

In the solution part--

One loop is placed which moves from 0 to (size-1) of the 'keyslist' array.
Then the 'if' statement is used to check the element of 'keyslist' array, which is greater than 50 or not.
If it is greater, then print the element of item_list array of 'i' index which is also the index of greater value of keyslist array element.

5 0

2 years ago

Cardinality ratios often dictate the detailed design of a database. The cardinality ratio depends on the real-world meaning of t

Otrada [13]

Solution :

ENTITY 1 CARDINALITY RATIO ENTITY 2

1. Student 1 to many Social security card

A student may have more than one

social security card (legally with the

same unique social security number),

and every social security number belongs

to a unique.

2. Student Many to Many Teacher

Generally students are taught by many

teachers and a teacher teaches many students.

3.ClassRoom Many to Many Wall

Do not forget that the wall is usually

shared by adjacent rooms.

4. Country 1 to 1 Current President

Assuming a normal country under normal

circumstances having one president at a

time.

5. Course Many to Many TextBook

A course may have many textbooks and

text book may be prescribed for different

courses.

6. Item Many to Many Order

Assuming the same item can appear

in different orders.

7. Student Many to Many Class

One student may take several classes.

Every class usually has several students.

8. Class Many to 1 Instructor

Assuming that every class has a unique

instructor. In case instructors were allowed

to team teach, this will be many-many.

9. Instructor 1 to 1 Office

Assuming every instructor has only one

office and it is not shared. In case of offices

shared by 2 instructors, the relationship

will be 2-1. Conversely, if any instructor has a joint

appointment and offices in both departments,

then the relationship will be 1-2. In a very general

case, it may be many-many.

10. E-bay Auction item 1-Many E-bay bid

1 item has many bids and a bid is unique

to an item.

7 0

2 years ago