How to sort List of List in 3 Categories [closed]

Answer 1

You can create as many comparators as you have columns and use one at a time or chain them to sort by multiple sorting criteria:

Comparator> byIndex0 = Comparator.comparing(i -> i.get(0));
Comparator> byIndex1 = Comparator.comparing(i -> i.get(1));
Comparator> byIndex2 = Comparator.comparing(i -> i.get(2));
Comparator> byIndex3 = Comparator.comparing(i -> i.get(3));

Sort your final list by the deseired criteria, eg. by the first index (Team)

FinalList.sort( byIndex0 );

To sort by two criterias you can just chain them using #thenComparing, eg. by team an then by country

FinalList.sort( byIndex0.thenComparing(byIndex1));

Or use all:

FinalList.sort( byIndex0.thenComparing(byIndex1).thenComparing(byIndex2).thenComparing(byIndex3));