[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

3 North American Launches That Built Sticker-Led Brands with Digital Printing

A brand manager’s perspective on how real launches used print technology, materials, and finishing—like gold foil—to turn stickers into a strategic brand asset. [...]
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Designing Sheet Labels That Print Right the First Time

A practical, engineer-level guide to preparing designs, choosing print technologies, and handling regional details so sheet labels output accurately—even from Google Docs. [...]
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Industry Experts Weigh In on Digital Printing’s Next Moves in Asia

A production manager’s view on where packaging and poster printing are headed in Asia: cost realities, technology choices, and the practical road to sustainable, short-run workflows. [...]
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Is Digital Printing Suitable for Short-Run Folding Carton Production?

A practical Q&A for packaging buyers comparing digital, offset, and flexo for short-run folding cartons—covering quality, substrates, finishing, cost classification, and sustainability choices. [...]
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Five Market Trends Shaping Europe’s Label Printing: Digital Momentum, Eco Pressures, and the SME Wave

A designer’s market read on how Europe’s label sector is shifting—digital vs flexo, sustainability rules, SME behavior, and on‑demand business models that are changing how converters plan, design, and sell. [...]
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How Three Global Brands Reframed Packaging with Digital Printing: A Case-Led Comparison

A brand manager’s take on real-world packaging design decisions—what three brands learned when they moved key SKUs to digital printing and rethought finishing, materials, and consumer cues. [...]
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Six-Month Timeline: A Southeast Asia Fulfillment Center Standardizes Cartons and Printing with uline boxes

Data-driven customer case from a printing engineer’s perspective: a Southeast Asia e-commerce operation adopts standardized corrugated cartons, aligns label printing (Digital + Flexo), and validates performance with concrete metrics, timelines, and lessons learned. [...]
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Label Design That Prints: Color, Materials, and Data That Work

A printing engineer’s take on building labels that look great and run clean—color that holds, materials that behave, and smart variable data from Excel. [...]
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From Week 1 to Week 24: An Asia Fulfillment Team's Data-Driven Moving Box Revamp

A timeline-style case story of an Asia-based fulfillment brand that standardized corrugated moving boxes with print-process control, color metrics, and smarter shipping codes. [...]
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Fixing Digital Printing Color Consistency Issues

A problem-diagnosis guide for print engineers in North America tackling color drift in digital sticker production, with practical parameters, tools, and real-world trade-offs. [...]
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