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How to bubble sort objects in array? [duplicate]

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-1

This question already has an answer here:

• 
  How can I swap two values of an array in c#?
  
  5 answers
  
  

I have a bit a of a problem. I'm trying to sort an array with objects in it. The objects are bottles with names, prices and types. The user makes a choice, which bottle he/she want's to add to the array.

For the assignment we have to use bubble sort. I've made it work, except it only sorts the price. The entire object doesn't switch place just the price itself. So if Coca-Cola's original price was 13 in list, after bubble sort it's 10. So the only thing that changes or gets sorted is the price and not the entire object, if that makes any sense.

public void sort_sodas()
{
 int max = sodas.Length - 1;

 for (int i = 0; i < max; i++)
 
 int nrLeft = max - i;

 for (int j = 0; j < nrLeft; j++)
 
 if (sodas[j+1] == null)
 
 break;
 
 else if (sodas[j].Price > sodas[j+1].Price)
 
 int temp = sodas[j].Price;
 sodas[j].Price = sodas[j + 1].Price;
 sodas[j + 1].Price = temp;
 
 
 

Below an image of before and after bubble sort:

c# arrays sorting object

share|improve this question

edited Mar 22 at 10:08

Ipsit Gaur

2,31411429

asked Mar 22 at 10:04

user11131093user11131093

186

marked as duplicate by Uwe Keim, Selvin, Community♦ Mar 22 at 10:14

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  obviously you should swap whole object not only price .. var temp = sodas[j]; sodas[j] = ... and so on
  
  – Selvin
  Mar 22 at 10:05
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  But your code only changes the Price. What type of objects are in the sodas? Can you swap whole objects instead?
  
  – doctorlove
  Mar 22 at 10:06
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I've tried to swap the entire object and not just the price. I cant make it work, if anyone could show me how it's done, I would be grateful. thank you!
  
  – user11131093
  Mar 22 at 10:09
  

  
  
  
  

add a comment | 

-1

This question already has an answer here:

• 
  How can I swap two values of an array in c#?
  
  5 answers
  
  

I have a bit a of a problem. I'm trying to sort an array with objects in it. The objects are bottles with names, prices and types. The user makes a choice, which bottle he/she want's to add to the array.

For the assignment we have to use bubble sort. I've made it work, except it only sorts the price. The entire object doesn't switch place just the price itself. So if Coca-Cola's original price was 13 in list, after bubble sort it's 10. So the only thing that changes or gets sorted is the price and not the entire object, if that makes any sense.

public void sort_sodas()
{
 int max = sodas.Length - 1;

 for (int i = 0; i < max; i++)
 
 int nrLeft = max - i;

 for (int j = 0; j < nrLeft; j++)
 
 if (sodas[j+1] == null)
 
 break;
 
 else if (sodas[j].Price > sodas[j+1].Price)
 
 int temp = sodas[j].Price;
 sodas[j].Price = sodas[j + 1].Price;
 sodas[j + 1].Price = temp;
 
 
 

Below an image of before and after bubble sort:

c# arrays sorting object

share|improve this question

edited Mar 22 at 10:08

Ipsit Gaur

2,31411429

asked Mar 22 at 10:04

user11131093user11131093

186

marked as duplicate by Uwe Keim, Selvin, Community♦ Mar 22 at 10:14

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  obviously you should swap whole object not only price .. var temp = sodas[j]; sodas[j] = ... and so on
  
  – Selvin
  Mar 22 at 10:05
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  But your code only changes the Price. What type of objects are in the sodas? Can you swap whole objects instead?
  
  – doctorlove
  Mar 22 at 10:06
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I've tried to swap the entire object and not just the price. I cant make it work, if anyone could show me how it's done, I would be grateful. thank you!
  
  – user11131093
  Mar 22 at 10:09
  

  
  
  
  

add a comment | 

This question already has an answer here:

• 
  How can I swap two values of an array in c#?
  
  5 answers
  
  

I have a bit a of a problem. I'm trying to sort an array with objects in it. The objects are bottles with names, prices and types. The user makes a choice, which bottle he/she want's to add to the array.

For the assignment we have to use bubble sort. I've made it work, except it only sorts the price. The entire object doesn't switch place just the price itself. So if Coca-Cola's original price was 13 in list, after bubble sort it's 10. So the only thing that changes or gets sorted is the price and not the entire object, if that makes any sense.

public void sort_sodas()
{
 int max = sodas.Length - 1;

 for (int i = 0; i < max; i++)
 
 int nrLeft = max - i;

 for (int j = 0; j < nrLeft; j++)
 
 if (sodas[j+1] == null)
 
 break;
 
 else if (sodas[j].Price > sodas[j+1].Price)
 
 int temp = sodas[j].Price;
 sodas[j].Price = sodas[j + 1].Price;
 sodas[j + 1].Price = temp;
 
 
 

Below an image of before and after bubble sort:

c# arrays sorting object

share|improve this question

edited Mar 22 at 10:08

Ipsit Gaur

2,31411429

asked Mar 22 at 10:04

user11131093user11131093

186

public void sort_sodas()
{
 int max = sodas.Length - 1;

 for (int i = 0; i < max; i++)
 
 int nrLeft = max - i;

 for (int j = 0; j < nrLeft; j++)
 
 if (sodas[j+1] == null)
 
 break;
 
 else if (sodas[j].Price > sodas[j+1].Price)
 
 int temp = sodas[j].Price;
 sodas[j].Price = sodas[j + 1].Price;
 sodas[j + 1].Price = temp;
 
 
 

share|improve this question

edited Mar 22 at 10:08

Ipsit Gaur

2,31411429

asked Mar 22 at 10:04

user11131093user11131093

186

share|improve this question

edited Mar 22 at 10:08

Ipsit Gaur

2,31411429

asked Mar 22 at 10:04

user11131093user11131093

186

edited Mar 22 at 10:08

Ipsit Gaur

2,31411429

edited Mar 22 at 10:08

Ipsit Gaur

2,31411429

asked Mar 22 at 10:04

user11131093user11131093

186

asked Mar 22 at 10:04

user11131093user11131093

186

1 Answer
1

active

oldest

votes

2

You should not change prices of objects here:

else if (sodas[j].Price > sodas[j + 1].Price)

 int temp = sodas[j].Price;
 sodas[j].Price = sodas[j + 1].Price;
 sodas[j + 1].Price = temp;

You should change object positions:

else if (sodas[j].Price > sodas[j + 1].Price)

 var tempObject = sodas[j];
 sodas[j] = sodas[j + 1];
 sodas[j + 1] = tempObject;

share|improve this answer

edited Mar 22 at 10:10

answered Mar 22 at 10:09

Roman DoskochRoman Doskoch

9,276102738

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you so much!
  
  – user11131093
  Mar 22 at 10:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @user11131093, you are welcome
  
  – Roman Doskoch
  Mar 22 at 10:13
  

  
  
  
  

add a comment | 

2

You should not change prices of objects here:

else if (sodas[j].Price > sodas[j + 1].Price)

 int temp = sodas[j].Price;
 sodas[j].Price = sodas[j + 1].Price;
 sodas[j + 1].Price = temp;

You should change object positions:

else if (sodas[j].Price > sodas[j + 1].Price)

 var tempObject = sodas[j];
 sodas[j] = sodas[j + 1];
 sodas[j + 1] = tempObject;

share|improve this answer

edited Mar 22 at 10:10

answered Mar 22 at 10:09

Roman DoskochRoman Doskoch

9,276102738

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you so much!
  
  – user11131093
  Mar 22 at 10:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @user11131093, you are welcome
  
  – Roman Doskoch
  Mar 22 at 10:13
  

  
  
  
  

add a comment | 

2

You should not change prices of objects here:

else if (sodas[j].Price > sodas[j + 1].Price)

 int temp = sodas[j].Price;
 sodas[j].Price = sodas[j + 1].Price;
 sodas[j + 1].Price = temp;

You should change object positions:

else if (sodas[j].Price > sodas[j + 1].Price)

 var tempObject = sodas[j];
 sodas[j] = sodas[j + 1];
 sodas[j + 1] = tempObject;

share|improve this answer

edited Mar 22 at 10:10

answered Mar 22 at 10:09

Roman DoskochRoman Doskoch

9,276102738

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you so much!
  
  – user11131093
  Mar 22 at 10:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @user11131093, you are welcome
  
  – Roman Doskoch
  Mar 22 at 10:13
  

  
  
  
  

add a comment | 

You should not change prices of objects here:

else if (sodas[j].Price > sodas[j + 1].Price)

 int temp = sodas[j].Price;
 sodas[j].Price = sodas[j + 1].Price;
 sodas[j + 1].Price = temp;

You should change object positions:

else if (sodas[j].Price > sodas[j + 1].Price)

 var tempObject = sodas[j];
 sodas[j] = sodas[j + 1];
 sodas[j + 1] = tempObject;

share|improve this answer

edited Mar 22 at 10:10

answered Mar 22 at 10:09

Roman DoskochRoman Doskoch

9,276102738

else if (sodas[j].Price > sodas[j + 1].Price)

 int temp = sodas[j].Price;
 sodas[j].Price = sodas[j + 1].Price;
 sodas[j + 1].Price = temp;

else if (sodas[j].Price > sodas[j + 1].Price)

 var tempObject = sodas[j];
 sodas[j] = sodas[j + 1];
 sodas[j + 1] = tempObject;

share|improve this answer

edited Mar 22 at 10:10

answered Mar 22 at 10:09

Roman DoskochRoman Doskoch

9,276102738

answered Mar 22 at 10:09

Roman DoskochRoman Doskoch

9,276102738

answered Mar 22 at 10:09

Roman DoskochRoman Doskoch

9,276102738