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Collections.sort() is not working across all members


Collections.sort() is not working across all members

By : user2950823
Date : November 17 2020, 11:58 AM
I hope this helps you . Your compareTo method breaks the contract for that method in two ways.
1) Transitivity says that if x.compareTo(y) > 0 and y.compareTo(z) > 0 then x.compareTo(z) > 0. Your method breaks this because 5 > 4 and 4 > 1, but 5>1 is not one of your rules.
code :


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:except options in routes that contain collections and members not working

:except options in routes that contain collections and members not working


By : user3223567
Date : March 29 2020, 07:55 AM
Hope that helps A simpler way to eliminate unneeded routes is by specifying the :only option
code :
resources :userhome, :only => [:index] 
resources :userhome, :except => [:new, :create, :edit, :update, :show, :destroy]
Collections.sort isn't working

Collections.sort isn't working


By : Chris Irvine
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Because your list is an array, you're going to want to sort using Arrays.sort rather than Collections.sort.
Collections sort not working properly

Collections sort not working properly


By : 茅湖科
Date : March 29 2020, 07:55 AM
it helps some times Collections.sort(wordList); will work perfectly. if need to ignore the case then use below code.
code :
Collections.sort(wordList,String.CASE_INSENSITIVE_ORDER);
Collections.sort not working on java 1.7

Collections.sort not working on java 1.7


By : Paul Schauer
Date : March 29 2020, 07:55 AM
may help you . The problem is that your comparator is broken. When you have a Comparator
code :
comparator.compare(a, b) == -comparator.compare(b, a)
static class ObjectSortComparator implements Comparator<ObjectSort> {
    @Override
    public int compare (ObjectSort f1, ObjectSort f2) {
        // Get the allocation priorities
        int priority1 = f1.getPriority ();
        int priority2 = f2.getPriority ();

        return priority1 == priority2 ? 0 : (priority1 > priority2 ? 1 : -1);
    }
}
sorted.sort(Comparator.comparingInt(ObjectSort::getPriority));
why is Collections.sort() is not working?

why is Collections.sort() is not working?


By : Yunus
Date : March 29 2020, 07:55 AM
help you fix your problem I am new to java. I am writing a code which sorts the given pairs on the basis of it's first letter. I am using Collections.sort() to sort the pairs but somehow it's not being sorted. I am unable to figure out what's causing the problem. Please check the code below. . , You have wrong implementation of compare method.
Try it:
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