java screen capture api

Original: http://www.cnblogs.com/visec479/p/3842970.htmlSometimes, in Java application development, such as remote monitoring or distance learning, often need to intercept the computer's screen, because screen interception is closer to the operating system, under the Windows operating system, the operation is almost a VC, VB and other patents, in fact, the use of

example one: exception handling mechanism in/** * java * @author Administrator * * */public class ExceptionDemo1 {public static VO ID Main (string[] args) {System.out.println ("program started"); try{String str = null; * * The JVM found STR null when executing the Str.length () method. * Then create a nullpointerexception instance, encapsulate the description of the error, and then throw out the exception. * The JVM then looks at whether

Exception handlingThe parent class in the exception structure Throwable class, its Exceptionlei class and the error class. What we can catch in the program is the subclass exception of exception.Error at System level: Error in Java Runtime Environment, we are not controllable.Exception is a program-level error: we can control it. 1) catch Exceptions in two ways: one is to add Try-catch to catch the exception, and the other is to declare the exceptio

Appium the use of some of the API, the need for friends can refer to the next.The language used is Java,appium version is 1.3.4,java-client version is java-client-2.1.0, recommended for multi-reference java-client-2.1.0-javadoc.1. Using Androiddriver, it has inherited the Ap

method Three: int h=integer.valueof ("0"). Intvalue (); Effect same as method two, only method three calls an integer static method valueOf Returns an integer objectSummary: Implement a conversion between a string to a basic data type (such as an integral type)int w=xxx wrapper class. Parsexxx (String str), such as int w=integer.parseint ("0"), where Parsexxx () Method is a static method of the wrapper class. 2. Converting wrapper classes to basic datainteger i=new Integer ("0");int h=i.int

Java 8 new feature tour: Using Stream API to process collections In this "Java 8 new feature tutorial" series, we will explain in depth and use code to demonstrate how to traverse collections through streams and how to create streams from collections and arrays, and how to aggregate the stream value. In the previous article "traversing, filtering, processing col

. Then you double-click the jar package, the program flashed over, leaving a Weibo.log file, which is a log. In case of an error, you can view the log for reasons. Now that the program is executed, it has released a microblog. You can drag this file to the virtual machine Linux, we see how Java is running around, the result Java-jar 1.jar after the error, how to do it? Take a closer look at the error messag

, which is a log. In case of an error, you can view the log for reasons. Now that the program is executed, it has released a microblog.You can drag this file to the virtual machine Linux, we see how Java is running around, the result Java-jar 1.jar after the error, how to do it?Take a closer look at the error message, which says Java.net.UnknownHostException, and then see if the error message says Inetaddre

1. Using a stream to traverse a collectionBrief introduction:Java's collection framework, such as the list and map interfaces and the ArrayList and HashMap classes, makes it easy to manage both ordered and unordered collections. The collection framework has been continuously improved since the first day of introduction. In Java SE 8, we can manage, traverse, and aggregate collections through the flow's API.

set. if (! TABLE_ID.isEmpty () {// Get profile data from the Data Feed. getDataFeed (analyticsService); // get data information (including "metrics" and "dimensions")} catch (AuthenticationException e) {System. err. println ("Authentication failed:" + e. getMessage (); return;} catch (IOException e) {System. err. println ("Network error trying to retrieve feed:" + e. getMessage (); return;} catch (ServiceException e) {System. err. println ("Analytics API