您需要实现
Comparator，例如：
public class FishNameComparator implements Comparator<Fish>{ public int compare(Fish left, Fish right) { return left.name.compareTo(right.name); }}然后像这样排序：
Collections.sort(fishes, new FishNameComparator());
您需要实现
Comparator，例如：
public class FishNameComparator implements Comparator<Fish>{ public int compare(Fish left, Fish right) { return left.name.compareTo(right.name); }}然后像这样排序：
Collections.sort(fishes, new FishNameComparator());
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