集合综合练习<三>
package com.JiHeTotal; import java.util.Comparator; import java.util.Map; import java.util.Map.Entry; public class MyComparator implements Comparator<Map.Entry<String, Double>> { @Override public int compare(Entry<String, Double> o1, Entry<String, Double> o2) { if (o1.getValue() > o2.getValue()) { return 1; } else if (o1.getValue() < o2.getValue()) { return -1; } else { return 0; } } }