单项选择题
public static void search(List
list.clear();
list.add(”b”);
list.add(”a”);
list.add(”c”);
System.out.println(Collections.binarySearch(list, “a”));
}
What is the result of calling search with a valid List implementation?()
A.0
B.1
C.a
D.b
E.c
F.The result is undefined.
相关考题
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单项选择题
Given: int[] myArray=newint[] {1, 2,3,4, 5}; What allows you to create a list from this array?()
A. List myList = myArray.asList();
B. List myList = Arrays.asList(myArray);
C. List myList = new ArrayList(myArray);
D. List myList = Collections.fromArray(myArray); -
单项选择题
11. List list = // more code here 12. Collections.sort(list, new MyComparator()); Which code will sort this list in the opposite order of the sort in line 12?()
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?()
A. Tea
B. Coffee
C. Coffee Tea
D. Compilation fails.
E. The code runs with no output.
F. An exception is thrown at runtime.
