SCJP題庫第187題

Given:

1. public class Score implements Comparable<Score>{

2.   private int wins, losses;

3.   public Score(int w, int l){wins = w; losses = l;}

4.   public int getWins(){return wins;}

5.   public int getLosses(){return losses;}

6.   public String toString(){

7.     return "<" + wins + "," + losses + ">";

8.   }

9.   //insert code here

10.}

Which method will complete this class?

A. public int compareTo(Object o){/* more code here */}

B. public int compareTo(Score other){/* more code here */}

C. public int compare(Score s1, Score s2){/* more code here */}

D. public int compare(Object o1, Object o2){/* more code here */}

 

Ans: B

 

解說:

public interface Comparable<T>

int compareTo(T o)

<T>中為<Score>(第1 行)

compareTo(Score ß