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Multi-dimensional arrays
Java, as with most languages, supports multi-dimensional arrays - 1-dimensional, 2-dimensional, 3-dimensional, ... This discusses 2-dimensional arrays, but the same principles apply to higher dimensions.
2-dimensional arrays
2-dimensional arrays are usually...
By pradeep
Last Message By Healthcare
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1. How can you store a copy of an object at the same time other threads may be changing the object's properties?
Choice 1
Override writeObject() in ObjectOutputStream to make it synchronized.
Choice 2
Clone the object in a block synchronized on the object and serialize the clone.
Choice 3...
By shabbir
Last Message By msci
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140,993 |
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I often hear people asking on how to put an image on Java applications, thus here is an example of a painted panel that has an image in the same directory as the application *note* you cant use windows bmp with Java, but once you start creating your own images it's a good time to note that their...
By Systemerror
Last Message By tiwvinay
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27,401 |
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Introduction
This component is suitable to convert a well-formed html with/without inline CSS to a PDF file.
HTML to PDF Converter is a tool to convert HTML to PDF.
HTML to PDF Converter accurately transforms well-formed HTML with or without inline cascading style sheets into PDF...
By sameer_havakajoka
Last Message By Jeffmax
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7,702 |
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Using Regular Expressions in Java
JDK versions 1.4.0 and later have comprehensive support for regular expressions through the standard java.util.regex package. Because Java lacked a regex package for so long, there are also many 3rd party regex packages available for Java. I will only discuss...
By pradeep
Last Message By elec.shabnam
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27,099 |
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Java's networking classes enable you to implement applications that communicate across a network/remote connection, but the platform also extends into the realm of the Internet and URLs. Java's URL class makes accessing Web resources as easy as accessing a local file. Let's take a look at how you...
By pradeep
Last Message By fiverivers
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62,086 |
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Java is an object-oriented language and as said everything in java is an object. But what about the primitives? They are sort of left out in the world of objects, that is, they cannot participate in the object activities, such as being returned from a method as an object, and being added to a...
By techgeek.in
Last Message By Balaji Reddy
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114,639 |
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Introduction
The solution is mainly used in Error website wherein you have to generate reports which gives the number of solutions uploaded in a specific period(Reports by calendar) or the number of solutions posted by particular employee (reports by employee id).
Background
My...
By sameer_havakajoka
Last Message By rasd123
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3,400 |
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Introduction
A package is a namespace that organizes a set of related classes and interfaces to provide access protection and namespace management.You can think of packages as being similar to different folders on your computer. Software written in the Java programming language can be...
By techgeek.in
Last Message By herandez21
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10,130 |
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Objects in Java are referred using reference types, and there is no direct way to copy the contents of an object into a new object.
The assignment of one reference to another merely creates another reference to the same object. Therefore, a special clone() method exists for all reference...
By pradeep
Last Message By javaexp
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221,879 |
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This article continues our exploration of the Abstract Window Toolkit (AWT). It examines the standard controls defined by Java. Controls are components that allow a user to interact with your application in various ways—for example; a commonly used control is the push button.
The AWT supports...
By techgeek.in
Last Message By vikash85
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9,949 |
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A thread, by definition is a light weight process. They are used to increase functionality and performance by performing multiple tasks at the same time, i.e. concurrently. There are two methods for implementing threads in Java,
Implementing an interface
Extending a class
I'd assume that...
By pradeep
Last Message By frank239
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11,370 |
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JNode, a "Java New OS Design Effort" is an open source all java operating system. It is a modern OS with support for modern hardware devices intended to be simple to use, install & maintain on personal devices such as desktops, tablet pcs and handhelds.
JNode has started out many years ago as...
By Tango Issac Debian
Last Message By shabbir
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4,084 |
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This article demonstrates how to write a simple Stateful Session Bean. It consists of three POJO's: Remote interface Cart.java, Bean class CartBean.java and EJB client CartClient.java.
Prerequisites
In order to complete the example application, you should be familiar with the following:
*...
By Sanskruti
Last Message By Sujata420
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7
72,432 |
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Google pagination used to find initial and final index for the search done using google3 for website application.
GoogleAppSearch.java
import net.sf.gsaapi.GSAClient;
import net.sf.gsaapi.GSAQuery;
import net.sf.gsaapi.GSAResponse;
import net.sf.gsaapi.GSAQuery.GSAQueryTerm;
import...
By naimish
Last Message By shabbir
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7
5,755 |
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Introduction
This Code snippet is used to capture Screenshot automatically and save it.
The below code performs the function of taking screenshots automatically making use of the class java.awt.Robot .The package java.awt contains all of the classes for creating user interfaces and for...
By sameer_havakajoka
Last Message By rasd123
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7
3,393 |
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Introduction
Java can be used to create two types of programs: applications and applets. An application is a program that runs on a computer, under the operating system of that Computer just like the one created using C or C++.
An applet is an application that is accessed on the...
By techgeek.in
Last Message By suman52
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7,512 |
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Comparing Strings
To compare strings function equals() is used.
String str1 = "XYZ";
String str2 = "xyz";
boolean result = str1.equals(str2);
boolean result2 = str1.equalsIgnoreCase(str2);Output
By Sanskruti
Last Message By bapsbps
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14,632 |
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This is a basic digital clock in Java that works off your operating system time, it works in a multithreaded environment and have coded it to put my own background in.
import java.awt.*;
import javax.swing.*;
import java.util.*;
class Clock extends JFrame implements Runnable
{
...
By Systemerror
Last Message By rkudoz
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6
57,048 |
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The String class is used to manipulate character strings that cannot be changed. In simple terms, objects of type String are read only and immutable. The StringBuffer class is used to represent characters that can be modified. The significant performance difference between these two classes is that...
By techexplorer
Last Message By andrewgibs
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6
6,198 |