How compare only items in 2 lists? [closed]
-5
Android 5.0, Java 1.7
I has 2 lists. I need to compare only content of this lists. The order of the elements does not matter.
Example:
[1,2,3,4,5] , [1,2,3,4,5] -> return true
[1,2,3,4] , [1,2,3,4,5] -> return false
[1,3,5,4,2] , [1,2,3,4,5] -> return true
java
android asked Nov 22 '18 at 11:02
AlexeiAlexei
1,12711024
closed as off-topic by Stultuske, Andrii Omelchenko, Thomas, user6910411, Raedwald Nov 22 '18 at 12:50
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions asking us to recommend or find a book, tool, software library, tutorial or other off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam. Instead, describe the problem and what has been done so far to solve it." – Stultuske, user6910411
If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
-5
Android 5.0, Java 1.7
I has 2 lists. I need to compare only content of this lists. The order of the elements does not matter.
Example:
[1,2,3,4,5] , [1,2,3,4,5] -> return true
[1,2,3,4] , [1,2,3,4,5] -> return false
[1,3,5,4,2] , [1,2,3,4,5] -> return true
java
android asked Nov 22 '18 at 11:02
AlexeiAlexei
1,12711024
closed as off-topic by Stultuske, Andrii Omelchenko, Thomas, user6910411, Raedwald Nov 22 '18 at 12:50
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions asking us to recommend or find a book, tool, software library, tutorial or other off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam. Instead, describe the problem and what has been done so far to solve it." – Stultuske, user6910411
If this question can be reworded to fit the rules in the help center, please edit the question.
10
by writing the code that does that, but we're not a handing out code service.
– Stultuske
Nov 22 '18 at 11:03
1
You an try converting list to SET and then compare them by Collection comparator
– ahuja007
Nov 22 '18 at 11:05
3
duplicate stackoverflow.com/questions/13501142/…
– K. Dexter
Nov 22 '18 at 11:06
2
Possible duplicate of Java ArrayList - how can I tell if two lists are equal, order not mattering?
– Andrii Omelchenko
Nov 22 '18 at 11:07
add a comment |
-5
-5
-5
Android 5.0, Java 1.7
I has 2 lists. I need to compare only content of this lists. The order of the elements does not matter.
Example:
[1,2,3,4,5] , [1,2,3,4,5] -> return true
[1,2,3,4] , [1,2,3,4,5] -> return false
[1,3,5,4,2] , [1,2,3,4,5] -> return true
java
android asked Nov 22 '18 at 11:02
AlexeiAlexei
1,12711024
Android 5.0, Java 1.7
I has 2 lists. I need to compare only content of this lists. The order of the elements does not matter.
Example:
[1,2,3,4,5] , [1,2,3,4,5] -> return true
[1,2,3,4] , [1,2,3,4,5] -> return false
[1,3,5,4,2] , [1,2,3,4,5] -> return true
java
android java
android asked Nov 22 '18 at 11:02
AlexeiAlexei
1,12711024
asked Nov 22 '18 at 11:02
AlexeiAlexei
1,12711024
asked Nov 22 '18 at 11:02
AlexeiAlexei
1,12711024
asked Nov 22 '18 at 11:02
AlexeiAlexei
1,12711024
asked Nov 22 '18 at 11:02
AlexeiAlexei
1,12711024
1,12711024
closed as off-topic by Stultuske, Andrii Omelchenko, Thomas, user6910411, Raedwald Nov 22 '18 at 12:50
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions asking us to recommend or find a book, tool, software library, tutorial or other off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam. Instead, describe the problem and what has been done so far to solve it." – Stultuske, user6910411
If this question can be reworded to fit the rules in the help center, please edit the question.
closed as off-topic by Stultuske, Andrii Omelchenko, Thomas, user6910411, Raedwald Nov 22 '18 at 12:50
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions asking us to recommend or find a book, tool, software library, tutorial or other off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam. Instead, describe the problem and what has been done so far to solve it." – Stultuske, user6910411
If this question can be reworded to fit the rules in the help center, please edit the question.
10
by writing the code that does that, but we're not a handing out code service.
– Stultuske
Nov 22 '18 at 11:03
1
You an try converting list to SET and then compare them by Collection comparator
– ahuja007
Nov 22 '18 at 11:05
3
duplicate stackoverflow.com/questions/13501142/…
– K. Dexter
Nov 22 '18 at 11:06
2
Possible duplicate of Java ArrayList - how can I tell if two lists are equal, order not mattering?
– Andrii Omelchenko
Nov 22 '18 at 11:07
add a comment |
10
by writing the code that does that, but we're not a handing out code service.
– Stultuske
Nov 22 '18 at 11:03
1
You an try converting list to SET and then compare them by Collection comparator
– ahuja007
Nov 22 '18 at 11:05
3
duplicate stackoverflow.com/questions/13501142/…
– K. Dexter
Nov 22 '18 at 11:06
2
Possible duplicate of Java ArrayList - how can I tell if two lists are equal, order not mattering?
– Andrii Omelchenko
Nov 22 '18 at 11:07
10
10
by writing the code that does that, but we're not a handing out code service.
– Stultuske
Nov 22 '18 at 11:03
by writing the code that does that, but we're not a handing out code service.
– Stultuske
Nov 22 '18 at 11:03
1
1
You an try converting list to SET and then compare them by Collection comparator
– ahuja007
Nov 22 '18 at 11:05
You an try converting list to SET and then compare them by Collection comparator
– ahuja007
Nov 22 '18 at 11:05
3
3
duplicate stackoverflow.com/questions/13501142/…
– K. Dexter
Nov 22 '18 at 11:06
duplicate stackoverflow.com/questions/13501142/…
– K. Dexter
Nov 22 '18 at 11:06
2
2
Possible duplicate of Java ArrayList - how can I tell if two lists are equal, order not mattering?
– Andrii Omelchenko
Nov 22 '18 at 11:07
Possible duplicate of Java ArrayList - how can I tell if two lists are equal, order not mattering?
– Andrii Omelchenko
Nov 22 '18 at 11:07
add a comment |
1 Answer
1
active
oldest
votes
2
A simple method would be to use containsAll method:
if(listOne.containsAll(listTwo) && listTwo.containsAll(listOne)) {
System.out.println("They are equal");
}
answered Nov 22 '18 at 11:12
Schidu LucaSchidu Luca
2,834520
1
If size of lists are same then one comparison is in-off to full-fill check.
– Chetan Joshi
Nov 22 '18 at 11:14
That's not necessarily true
– Schidu Luca
Nov 22 '18 at 11:21
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
A simple method would be to use containsAll method:
if(listOne.containsAll(listTwo) && listTwo.containsAll(listOne)) {
System.out.println("They are equal");
}
answered Nov 22 '18 at 11:12
Schidu LucaSchidu Luca
2,834520
1
If size of lists are same then one comparison is in-off to full-fill check.
– Chetan Joshi
Nov 22 '18 at 11:14
That's not necessarily true
– Schidu Luca
Nov 22 '18 at 11:21
add a comment |
2
A simple method would be to use containsAll method:
if(listOne.containsAll(listTwo) && listTwo.containsAll(listOne)) {
System.out.println("They are equal");
}
answered Nov 22 '18 at 11:12
Schidu LucaSchidu Luca
2,834520
1
If size of lists are same then one comparison is in-off to full-fill check.
– Chetan Joshi
Nov 22 '18 at 11:14
That's not necessarily true
– Schidu Luca
Nov 22 '18 at 11:21
add a comment |
2
2
2
A simple method would be to use containsAll method:
if(listOne.containsAll(listTwo) && listTwo.containsAll(listOne)) {
System.out.println("They are equal");
}
answered Nov 22 '18 at 11:12
Schidu LucaSchidu Luca
2,834520
A simple method would be to use containsAll method:
if(listOne.containsAll(listTwo) && listTwo.containsAll(listOne)) {
System.out.println("They are equal");
}
answered Nov 22 '18 at 11:12
Schidu LucaSchidu Luca
2,834520
edited Nov 22 '18 at 11:18
answered Nov 22 '18 at 11:12
Schidu LucaSchidu Luca
2,834520
answered Nov 22 '18 at 11:12
Schidu LucaSchidu Luca
2,834520
answered Nov 22 '18 at 11:12
Schidu LucaSchidu Luca
2,834520
2,834520
1
If size of lists are same then one comparison is in-off to full-fill check.
– Chetan Joshi
Nov 22 '18 at 11:14
That's not necessarily true
– Schidu Luca
Nov 22 '18 at 11:21
add a comment |
1
If size of lists are same then one comparison is in-off to full-fill check.
– Chetan Joshi
Nov 22 '18 at 11:14
That's not necessarily true
– Schidu Luca
Nov 22 '18 at 11:21
1
1
If size of lists are same then one comparison is in-off to full-fill check.
– Chetan Joshi
Nov 22 '18 at 11:14
If size of lists are same then one comparison is in-off to full-fill check.
– Chetan Joshi
Nov 22 '18 at 11:14
That's not necessarily true
– Schidu Luca
Nov 22 '18 at 11:21
That's not necessarily true
– Schidu Luca
Nov 22 '18 at 11:21
add a comment |
10
by writing the code that does that, but we're not a handing out code service.
– Stultuske
Nov 22 '18 at 11:03
1
You an try converting list to SET and then compare them by Collection comparator
– ahuja007
Nov 22 '18 at 11:05
3
duplicate stackoverflow.com/questions/13501142/…
– K. Dexter
Nov 22 '18 at 11:06
2
Possible duplicate of Java ArrayList - how can I tell if two lists are equal, order not mattering?
– Andrii Omelchenko
Nov 22 '18 at 11:07