单项选择题
A. Collections.reverseSort(list, new MyComparator());
B. Collections.sort(list, new MyComparator()); list.reverse();
C. Collections.sort(list, new InverseComparator( new MyComparator()));
D. Collections.sort(list, Collections.reverseOrder( new MyComparator()));
单项选择题 public class Drink implements Comparable { public String name; public int compareTo(Object o) { return 0; } } and: Drink one = new Drink(); Drink two = new Drink(); one.name= “Coffee”; two.name= “Tea”; TreeSet set = new TreeSet(); set.add(one); set.add(two); A programmer iterates over the TreeSet and prints the name of each Drink object. What is the result?()
多项选择题 1. public class Test { 2. public T findLarger(T x, T y) { 3. if(x.compareTo(y) > 0) { 4. return x; 5. } else { 6. return y; 7. } 8. } 9. } and: 22. Test t = new Test(); 23. // insert code here Which two will compile without errors when inserted at line 23?()
单项选择题 11. public void addStrings(List list) { 12. list.add(”foo”); 13. list.add(”bar”); 14. } What must you change in this method to compile without warnings?()