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nirvana33 [79]
4 years ago
10

A Set collection is an unordered collection that allows duplicate elements TRUE FALSE

Computers and Technology
1 answer:
GalinKa [24]4 years ago
6 0

Answer:

FALSE.

Explanation:

A set collection is an unordered collection.It is optimized for searching but it does not allow duplicate elements.Set is implemented by LinkedHashSet,TreeSet or HashSet.

Set has various methods to remove,add,size,clear etc which enhances it's usage.

When duplicate values are entered in the set it will display that value only.

Hence we conclude that the answer to this question is False because it does not allows duplicate values.

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Assume that a function named swapdoubles has been defined and is available for use in this exercise: that function receives two
Nata [24]

Answer:

C++ Code:

void sort3(double &a, double &b, double &c)

{

   if(a > b)

       swapdoubles(a,b);

   if (b > c)

       swapdoubles(b,c);

   if (a > b)

       swapdoubles(a,b);

}

Explanation:

To change the values of a,b,c within the function, we pass the values by reference. Let us assume that number a = 3.14, b = 2.71, c = 3.04. Since a > b, values of a and b will be swapped.Now a = 2.71 and b = 3.14. Similariy, since b > c, they will be swapped. This way, we move the largest number to its correct position in the first two steps. If there are only three numbers, and the largest number is in its correct position, then for the two remaining numbers, we will only need atmost one swap to exchange their positions. hence, we perform a comparison of a > b once again to see if the b is smaller than a. if its not, then all a,b,c are in sorted order.

6 0
3 years ago
Now write a program named GreenvilleRevenue that prompts a user for the number of contestants entered in last year’s competition
ss7ja [257]

Answer:

The c# program is given below.

using System;

class GreenvilleRevenue  

{

   static void Main() {

       // variable declared and initialized simultaneously

       int fees = 25;

       int last, present, rev;

       Console.WriteLine( "Enter the number of contestants participating in last year’s competition " );

       last = Convert.ToInt32(Console.ReadLine());

       Console.WriteLine( "Enter the number of contestants participating in this year’s competition " );

       present = Convert.ToInt32(Console.ReadLine());

       Console.WriteLine( "Number of Participants in last year's competition  \t\t" + last);

       Console.WriteLine( "Number of Participants in present year's competition   \t" + present);

       rev = present*fees;

       Console.WriteLine( "Revenue expected in this year’s competition is \t\t\t$" + rev );

       if(last < present)

           Console.WriteLine( "Participants are more this year" );

       else if(last > present)

           Console.WriteLine( "Participants are less this year" );

       else if(last == present)

           Console.WriteLine( "Participants are same both years" );

   }

}  

OUTPUT

Enter the number of contestants participating in last year’s competition  

111

Enter the number of contestants participating in this year’s competition  

123

Number of Participants in last year's competition    111

Number of Participants in present year's competition    123

Revenue expected in this year’s competition is   $3075

Participants are more this year

Explanation:

This program takes input from the user. The input is not validated as this is not mentioned in the question.

1. An integer variable is declared and initialized by the fees of this year’s competition.

2. Integer variables are declared to store participants for last year, present year and revenue earned in the present year.

3. User enters the number of participants in last year’s competition.

4. User enters the number of participants in this year’s competition.

5. All the input from the user is displayed.

6. The revenue earned in this year’s competition is computed and displayed.

7. The message is also displayed whether number of participants this year is greater or not than the last year.

8. Also, if participants are same in both years, the message is displayed accordingly.

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Pavel [41]

Answer:

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