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kobusy [5.1K]
3 years ago
7

Two electronics technicians are looking at the testing instrument in the figure above. Technician A says that this instrument is

used to measure electrical signals in a circuit and display them as waveforms on a screen. Technician B says that this instrument is called a signal generator. Which of the following statements is correct?
A. Only Technician A is correct.
B. Neither of the two technicians is correct.
C. Both Technician A and Technician B are correct.
D. Both Technician B is correct

Computers and Technology
1 answer:
aleksklad [387]3 years ago
4 0
I am pretty sure the answer is A.
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Write a small program basic c++, that defines a negative integer (between ‐1 and ‐255), converts it to a positive value and then
ANEK [815]

Answer:

#include <iostream>

using namespace std;

int main() {

int a=-156;//negative integer between -1 and -255.

a*=-1;//multiplying a to -1 so that it can become positive.

cout<<a;//printing a.

return 0;

}

Explanation:

The above written program is in C++ and in the program an integer a is defined with a negative value in the program it is -156.Then to convert it to positive integer we have to multiply a to -1 after that printing the value of a on the screen.

4 0
2 years ago
What item is at the front of the list after these statements are executed?
Veseljchak [2.6K]

Answer:

A.Sam.

Explanation:

We are using Deque interface which is sub type of  Queue interface. Deque supports insertion and deletion from both ends front and end.So it can be used as a queue and stack also.

In this question we have inserted Jack at the front first.Then Rudy at the back then larry also at the tail.Now we have added sam at the front then nothing is added to the front.So the answer is Sam.

7 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 <em>void</em>

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 <em>String </em>as parameter since the names to be stored are of type <em>String</em>.

v. The format of initializing an array manually should follow as shown on line 7. The <em>new</em> 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 <em>for</em>

=> 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

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

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