[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

Can UV Inkjet or Hybrid Digital Printing Deliver the Right Results for Custom Stickers for Car Windows?

A brand manager’s comparison guide to selecting print technologies, substrates, and workflows for durable window stickers—balancing quality, cost, and speed across global markets. [...]
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A Practical Guide to Making Avery Labels from Excel: From Data to Press-Ready Production

A production manager’s step-by-step workflow for turning Excel data into color-coded, press-ready label jobs—covering data prep, print choice, QC, finishing, and scale in Asia. [...]
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Reducing Waste in Flexographic and Digital Corrugated Printing

A production manager’s practical playbook to cut scrap, steady color, and trim changeovers in corrugated box printing—without derailing schedules or budgets. [...]
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When Should Brands Choose Hybrid Printing for Stickers—and Why Is It Evolving So Fast?

A brand manager’s view on the evolution of digital, flexo, and hybrid printing for sticker production in Asia, with practical parameters, quality standards, and the moments when hybrid makes strategic sense. [...]
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Digital and UV-LED Printing for Food & Beverage Labels: Real-World Applications with Waste-Smart Practices

A sustainability-focused field guide to applying digital and UV-LED printing in food and beverage labels—from honey jars to chilled drinks—while bringing scrap, energy, and color variation under control. [...]
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Inside Flexographic Printing: How It Actually Works on Corrugated Moving Boxes

A designer’s deep dive into how flexographic and digital processes interact with corrugated board, with practical parameters, color targets, and real-world constraints for moving-box applications. [...]
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Inkjet Printing Trends to Watch

A designer’s take on where inkjet and DTF are headed across packaging and merch — with real-world ranges, hybrid workflows, and what the next year could mean for teams on tight timelines. [...]
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The Corrugated Board Advantage in E‑commerce Boxes: Clean Prints, Strong Seals, and Stress‑Free Moves

A solution-focused look at corrugated box applications—how substrate choice, print methods, and smart taping techniques combine to deliver reliable shipping and moving experiences. [...]
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Kraft vs Coated Paperboard: Which Works Better for Box Design in the Real World?

A sustainability-led, design-focused comparison of kraft and coated paperboard choices for box packaging—what actually works on shelf, in e-commerce, and in production across Asia. [...]
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Why Digital Printing Outperforms Traditional Methods for Sustainable Posters in Asia

A solution-oriented look at how modern digital and inkjet workflows meet speed, quality, and sustainability needs for poster printing across Asia—addressing real questions on lead times, materials, and environmental impact. [...]
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