[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

Hybrid Printing Process Control for Corrugated Packaging

A designer’s field guide to running hybrid flexo–digital lines on corrugated and folding carton in Europe, with practical parameters, pitfalls, and optimization moves. [...]
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The Psychology of Apparel Labels: Why Touch, Color, and Hierarchy Drive Buying Decisions

A brand manager’s take on how psychology-led label design, finishing, and production choices translate into real retail impact for apparel brands across North America. [...]
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A Practical Guide to Digital Sticker Production: From Bottles to Walls

A brand manager’s field guide to planning, specifying, and scaling digital sticker work—covering bottle labels, wall graphics, and even nail accents—built around real FAQs from teams across Asia. [...]
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Sustainable Packaging Print in Asia to Reach 45–55% Share by 2028

A sustainability-focused outlook on Asia’s packaging print landscape, with forecasts, technology pathways, and the consumer behaviors nudging converters toward lower-impact inks, substrates, and workflows. [...]
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What's Driving Digital and Hybrid Sticker Printing Adoption?

A print engineer’s view on where sticker and label production is heading—technology outlook, energy realities, and the on-demand business model reshaping global workflows. [...]
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"We wanted packaging that felt honest": An Asia e‑commerce brand’s journey with Flexographic Printing

A designer’s view of how an Asia-based apparel startup moved from plain boxes to a consistent, sustainable system—balancing substrates, color, and the realities of fast fulfillment. [...]
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Specialty Foods Brand Success Story: Digital Printing in Action

A designer’s-eye view of how a specialty sweets and wellness brand moved from sketches to shelf using Digital Printing, folding carton structures, and food-safe finishes—balancing visuals, compliance, and real-world timelines. [...]
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Does FedEx Do Poster Printing, and How Much Does Printing a Poster Cost?

A practical, designer-minded comparison of print technologies, substrates, and cost drivers for posters—plus realistic timelines in Asia. [...]
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E-commerce Case Study: ParcelPeak Europe Reframes Shipping Labels with Thermal Transfer

A deep interview with ParcelPeak Europe's operations team on stabilizing shipping label quality, barcode scan rates, and throughput using Thermal Transfer and consistent labelstock sourcing. [...]
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Packaging Design That Prints Well: What Works

A printing engineer’s field guide to designing packaging that holds up from concept to press—color, materials, finishing, and information hierarchy, with practical trade-offs for real production in Asia. [...]
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