Java

Java. Lang. indexoutofboundsexception: Index: 0, size: 0 09: 59java. Lang. indexoutofboundsexception: Index: 0, size: 0Java. lang. indexoutofboundsexception: Index: 0, size: 0 at java. util. arraylist. rangecheck (arraylist. java: 546) at java.

Java programming those things 43-array overview Zhengzhou game college Chen yuefeng from: http://blog.csdn.net/mailbomb Chapter 6 Array Array is a basic data storage structure built in the Java language. It is a set of numbers to store multiple

-------------------- Android training, Java training, and hope to communicate with you! ---------------------- We usually define strings like this. String STR = "Boke "; Sometimes we also need the path string, for example: String STR = "D: \ Zhu

For Java developers, multithreading should be a knowledge point that must be skilled in application, especially for developing Java-based products. This article will give an in-depth explanation of the knowledge points of Java multithreading. In the

hssfworkbook workbook = new hssfworkbook (); hssfsheet sheet = workbook. createsheet ("sheet1"); hssfrow ROW = sheet. createrow (0); hssfcell cell = row. createcell (0); hssfcellstyle currencystyle = workbook. createcellstyle (); currencystyle.

 /***//** * Fanlikeequilateraltriangle. Java * Print a fan-like triangle * @ Author Deng Chao (codingmouse) * @ Version 0.1 * Development/test environment: jdk1.6 + eclipse SDK 3.3.2 */ Public class fanlikeequilateraltriangle ...{   Public static

Poi is an API provided by Apache for processing files such as Excel. 1. Download the JAR File Http://poi.apache.org/download.html#POI-3.7 The current stable version is 3.7. Development and download in window:Poi-bin-3.7-20101029.zip 2. decompress

7. Create zip and jar files in Java If (ARGs. length system. err. println ("Usage: Java zipit zip.zip file1 file2 file3"); system. exit (-1); } file zipfile = new file (ARGs [0]); If (zipfile. exists () { system. err. println ("zip file already

Find the example on the Internet. Here is the original article link: http://www.cnblogs.com/liyazhou/archive/2010/08/20/18020.7.html. But I always reported an error during the test. I found a lot of articles online and finally found a solution

Java TechnologyIt is both an advanced object-oriented programming language and a platform. Java technology is based on the concept of Java Virtual Machine (JVM)-A converter between language and underlying software and hardware. All Java

Each time a member variable modified by volatile is accessed by a thread, the value of the member variable is forcibly re-read from the main memory. In addition, when the member variables change, the thread is forced to write the change value back

How to obtain the file name and line number in the Java source code file :) In the C/C ++ program, the compiler provides two macros to obtain the row number and file name in the source file. The two macros are _ file __,__ line __ You can print the

Java programming things 70mso-hansi-font-family: calibri "> -- abstract classes and interfaces (3) Chen yuefeng From: http://blog.csdn.net/mailbomb8.9.3 Cambria; MSO-Hansi-font-family: Cambria "> comparison of abstract classes and

Java programming those things 24-assignment operators Zhengzhou game college Chen yuefeng from: http://blog.csdn.net/mailbomb 4.4 value assignment operatorA value assignment operator is a symbol that specifies a value for a variable or constant. The

Java programming those things 46-array use Example 2 Zhengzhou game college Chen yuefeng from: http://blog.csdn.net/mailbomb 6.3.4 judge whether array elements are repeatedRequirement: Determine whether the same element exists in an array. If the

Ji You attended an interview with Alibaba intern two days ago and asked a question about the string-based substring search. The implementation method is nothing more than a two-layer loop, but there is a ready-made implementation in Java, so I went

  // Method 1: Generate the client code call method. (This method can simplify a lot of code)//// Use the plug-in tool to generate client code for calling. For example, if a service is// Http: // 127.0.0.1: 8000/axis2/services/helloworld? WSDL //

Package COM. util. mail;/*** // The basic information used to send an email * Author by wangfunhttp: // www.5a5w.cn novels 520 */import Java. util. properties; public class mailsenderinfo {// IP address and port of the server sending mail private

Foreword many of my friends once asked me how to make beautiful User Interface programs, such as creating an apple interface and an XP interface. At that time, I had a headache because JDK was only 1.3 at the time, sun didn't make Java as successful

In Java, You can implement multithreading in two ways. One is to inherit the Thread class and the other is to implement the runnable interface; The thread class is defined in the Java. lang package. A class inherits the Thread class and