Java图形界面GUI 设置窗体JFrame对象 package com.Aha.Best; import javax.swing.ImageIcon; import javax.swing.JFrame; public class TestJFrame extends JFrame { public static void main(String[] args) { TestJFrame tjf = new TestJFrame(); ImageIcon ii = new ImageIcon(
Trie查询每个条目的时间复杂度,和字典中一共有多少条无关. 时间复杂度为O(W) w为查询单词的长度 import java.util.TreeMap; public class Trie { private class Node { public boolean isWord; public TreeMap<Character, Node> next; public Node(boolean isWord) { this.isWord = isWord; next = new TreeMa