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Leviafan [203]
3 years ago
9

What must be done before using ArrayLists? (This is Java Programming btw)

Computers and Technology
1 answer:
Viktor [21]3 years ago
5 0

Answer:

to create an ArrayList , you declare an Arraylist variable and call the ArrayList constructor to instantiate and ArrayList object and assign it to the variable

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2 years ago
Someone help me
valkas [14]

The program is an illustration of loops.

Loops are used to perform repetitive and iterative operations.

The program in C++ where comments are used to explain each line is as follows:

#include <iostream>

using namespace std;

int main(){

   //This declares and initializes all variables

   string star = "*", blank = " ", temp;

   //The following iteration is repeated 8 times

   for (int i = 1; i <= 8; i++) {

       //The following iteration is repeated 8 times

       for (int j = 1; j <= 8; j++) {

           //This prints stars

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               cout << star;

           }

           //This prints blanks

           else if (j % 2 == 0) {

               cout << blank;

           }

       }

       //This swaps the stars and the blanks

       temp = star;

       star = blank;

       blank = temp;

       //This prints a new line

       cout << endl;

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}

Read more about similar programs at:

brainly.com/question/16240864

5 0
2 years ago
Which pair of properties apply to both sound and electromagnetic waves?
Alex73 [517]
Both waves can have interference, reflection, and diffraction.

Wave interference is a phenomenon that occurs when two waves meet while traveling along the same medium. The interference of waves causes the medium to take on a shape that results from the net effect of the two individual waves upon the particles of the medium.

Wave reflection happens when a wave reaches the boundary between one medium and another medium, a portion of the wave undergoes reflection and a portion of the wave undergoes transmission across the boundary.

Wave diffraction<span> involves a change in direction of waves as they pass through an opening or around a barrier in their path.<span> </span></span>
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LUCKY_DIMON [66]
Yes, this statement is true.
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In the shape gallery of Microsoft PowerPoint, there are many shapes such as oval, square, rectangle, star, line and many more. One can use any shape to illustrate the concept or to show relationship between something.
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An internet address that ends in .com is operated by
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.com means company, so it is ran by a company.

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