摘要： 1. override Comparatorimport java.util.HashSet;import java.util.Stack;import java.util.Vector;import java.util.Queue;import java.util.PriorityQueue;import java.util.Comparator;public class test1 { public static void main(String[] args) { PriorityQueue q1 = new PriorityQueue(10,myCompar... 阅读全文