java - How can I retrieve all of the maximum values from a list? -


i have class called employee implements comparable interface.

now have 5 employee objects in list, each of has own salary property. want find of employee objects have max salary.

i can single object using

 employee employee = collections.max(employeelist);

but returns single employee, while trying retrieve array or list of of objects same max value. how can this?

to efficient, should iterate through list , find max elements yourself:

list<employee> result = new arraylist<>(); employee currentmax = null; (employee e : list) {     if (currentmax == null || e.compareto(currentmax) > 0) {         currentmax = e;         result.clear();         result.add(e);     }     else if (currentmax!= null && e.compareto(currentmax) == 0) {         result.add(e);     } }

this solution o(n), , requires single pass through list.


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