[置顶] JAVA学习路线

一:J2SE 面向对象-封装、继承、多态内存的分析递归集合类、泛型、自动打包与解包、AnnotationIO 多线程、线程同步 TCP/UDP AWT、事件模型、匿名类正则表达式反射机制2:数据库(Oracle或者MySQL)SQL语句多表连接,内外连接, 子查询等管理表、视图、索引、序列、约束等树状结构存储存储过程、触发器 数据库设计三范式、3:JDBCJDBC基础连接池 树状结构存储与展现Da

佛曰

此身如同臭皮囊,色身无常,此身非我,须当厌离

痛失新车

2009.11.23日晚,新车被盗。悲。

农夫养牛问题

一个农夫养了一头牛,三年后,这头牛每年会生出1头牛,生出来的牛三年后,又可以每年生出一头牛,请问农夫10年后有多少头牛?n年后呢?必要条件:生下来的全是母牛,且无不孕不育症,有专业公牛负责。斐波那契函数解决方法:    //总时间    String inputStr = 10;    //周期 &

文件上传

本人超级新人,折腾了一下午写的。用Hashtable存储表单项及其值,本来想做成兼容同名的,结果搞得个四不像,求指导。 FileUpload.java[code=Java]package business;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.i

新买的自行车

 

猜数字升级版

package org.blackice;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class GuestNumber {

        /**
         * @param args
...

猜数字游戏

package org.blackice.test;
import java.util.*;
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class GuestNumber {

        /**
         * @param args
...

杨辉三角

public class YangHui{
        public static void main(String arg[]){
                int i=1,j=1,iOf=0;
                int iN = 20;
...

求阶乘

public class Factor{
        public static void main(String arg[]){
                int i=1,j=1,iR=0;
                int[] arr = new int[]{2,4,6,10};
...

java内存泄露

Java的一个重要优点就是通过垃圾收集器(Garbage Collection,GC)自动管理内存的回收,程序员不需要通过调用函数来释放内存。因此,很多程序员认为Java不存在内存泄漏问题,或者认为即使有内存泄漏也不是程序的责任,而是GC或JVM的问题。其实,这种想法是不正确的,因为Java也存在内存泄露,但它的表现与C++不同。随着越来越多的服务器程序采用Java技术,例如JSP,Servlet

The 48-Hour Print Reality Check: What Promo Codes Actually Get You (From a Quality Inspector's View)

A quality manager with 4+ years reviewing commercial print orders breaks down the real trade-offs behind 48-hour delivery and promo codes. Learn what's included, what's not, and how to avoid paying more than you planned. [...]
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The $890 Sticker Shock: How a 'Simple' Vinyl Wrap Order Taught Me to Read the Fine Print

A first-hand account from a marketing manager who learned the hard way that the cheapest quote for vehicle wraps and custom decals often hides the real cost. This story covers the pitfalls of rush fees, material misunderstandings, and why transparent pricing builds better vendor relationships. [...]
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Asia 3PL Success: Cleaner Corrugated Printing, Lower CO₂

A Southeast Asia logistics provider rethinks corrugated box printing with flexo and digital upgrades, hitting measurable sustainability targets without derailing cost or capacity. [...]
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A Practical Guide to Choosing and Printing Moving Boxes for Apartment Moves

From substrate choices to print methods and real-world counts for a 1‑bedroom move, this guide answers common questions around sizing, strength, sourcing, and design for moving boxes. [...]
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Inside Thermal Label Printing: A Deep Dive into the Process (and Why Your DYMO Sometimes Won’t Print)

A production manager’s view of thermal label printing—how it really works, the parameters that matter, and a practical diagnostic for DYMO stoppages. [...]
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E‑commerce Relocation Platform MoveMate Asia Scales Corrugated Box Supply with Flexographic Printing

A deep-dive interview case study on how MoveMate Asia stabilized cost, color, and capacity for moving-box kits using flexographic printing on corrugated board across Southeast Asia. [...]
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How Can Soft‑Touch Coating and Spot UV Shape Buying Decisions on Custom Boxes?

A production manager’s take on the psychology behind tactile finishes, visual hierarchy, and the practical choices that turn custom boxes into sales drivers—without blowing up budgets or timelines. [...]
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Flexographic Printing vs Digital Printing on Corrugated Board: A Technical Comparison

A practical, engineer-level comparison of flexo and single-pass digital inkjet for corrugated packaging in Europe—process, parameters, quality targets, and real-world trade-offs. [...]
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Five Trends Reshaping Poster Printing in Europe: Speed, Sustainability, and On‑Demand Expectations

A sales-side view of where European poster printing is headed: market dynamics, digital workflows, changing buyer behavior, and sustainability trade-offs—told with real-world timelines and practical metrics. [...]
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6 Trends Reshaping North American Labels and Packaging

A market-focused look at how digital adoption, sustainability goals, e-commerce logistics, and personalization are redefining label production and design in North America. [...]
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