barcode vb.net Options and Alternatives in Java

Making Data Matrix ECC200 in Java Options and Alternatives

Options and Alternatives
Encoding Data Matrix In Java
Using Barcode generator for Java Control to generate, create DataMatrix image in Java applications.
DataMatrix Scanner In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
You can obtain a reference to the currently executing thread by calling currentThread( ), shown here: static Thread currentThread( )
Barcode Maker In Java
Using Barcode creator for Java Control to generate, create bar code image in Java applications.
Scanning Barcode In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
7:
Creating Data Matrix In Visual C#
Using Barcode encoder for VS .NET Control to generate, create Data Matrix ECC200 image in Visual Studio .NET applications.
Create DataMatrix In .NET
Using Barcode maker for ASP.NET Control to generate, create Data Matrix image in ASP.NET applications.
Multithreading
ECC200 Drawer In VS .NET
Using Barcode generation for Visual Studio .NET Control to generate, create Data Matrix ECC200 image in VS .NET applications.
ECC200 Creation In Visual Basic .NET
Using Barcode encoder for .NET framework Control to generate, create Data Matrix ECC200 image in .NET applications.
This method is useful when you want to obtain information about or manage the currently executing thread For example, you can obtain the ID for the main thread by executing this statement within main( ):
GS1 DataBar Truncated Generation In Java
Using Barcode generation for Java Control to generate, create GS1 DataBar Expanded image in Java applications.
Matrix Barcode Creation In Java
Using Barcode printer for Java Control to generate, create 2D Barcode image in Java applications.
Systemoutprintln("Main thread ID is " + ThreadcurrentThread()getId());
Print EAN128 In Java
Using Barcode printer for Java Control to generate, create UCC-128 image in Java applications.
Generating Code 3/9 In Java
Using Barcode printer for Java Control to generate, create ANSI/AIM Code 39 image in Java applications.
You can obtain the name of the main thread, using the same approach:
MSI Plessey Creation In Java
Using Barcode printer for Java Control to generate, create MSI Plessey image in Java applications.
ANSI/AIM Code 128 Generation In Objective-C
Using Barcode creator for iPhone Control to generate, create Code 128B image in iPhone applications.
Systemoutprintln("Main thread ID is " + ThreadcurrentThread()getName());
Decoding Bar Code In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
UPC-A Supplement 5 Drawer In None
Using Barcode maker for Microsoft Word Control to generate, create UPC-A Supplement 5 image in Office Word applications.
Wait for a Thread to End
Draw EAN13 In None
Using Barcode maker for Office Word Control to generate, create EAN 13 image in Microsoft Word applications.
UCC - 12 Generator In .NET Framework
Using Barcode generator for Reporting Service Control to generate, create UPC-A Supplement 2 image in Reporting Service applications.
Key Ingredients
Decode EAN-13 In .NET
Using Barcode reader for VS .NET Control to read, scan read, scan image in .NET applications.
Decode Barcode In .NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Classes javalangThread Methods final void join( )
When using multiple threads, it is not uncommon for one thread to wait until another thread has ended For example, a thread might be performing a task that must run to completion before a second thread can continue execution In other situations, you might want a thread, such as the main thread, to finish last so that it can perform various cleanup chores, such as releasing system resources that are no longer needed Whatever the reason, Thread provides a convenient means of waiting for a thread to end: the join( ) method This recipe demonstrates the process
Step-by-Step
To wait for a thread to end involves these steps: 1 Begin execution of a thread 2 Call join( ) on the thread This call must be executed from within the waiting thread 3 When join( ) returns, the thread has ended
Discussion
The join( ) method waits until the thread on which it is called terminates Its name comes from the concept of the calling thread waiting until the specified thread joins it Thus, join( ) causes the calling thread to suspend execution until the joining thread ends
Herb Schildt s Java Prog ramming Cookbook
There are three forms of join( ) The one used by this recipe is shown here: nal void join( ) throws InterruptedException The other two forms of join( ) let you specify the maximum amount of time that you want the invoking thread to wait for the specified thread to terminate
Example
The following example illustrates join( ) It creates a thread based on MyThread that counts to 5 and then ends Inside main( ), join( ) is called on this thread Therefore, the main thread waits until the thread has ended
// Demonstrate join() class MyThread implements Runnable { int count; MyThread() { count = 0; } // Count to 5 public void run() { Systemoutprintln("MyThread starting"); try { do { Threadsleep(500); Systemoutprintln("In MyThread, count is " + count); count++; } while(count < 6); } catch(InterruptedException exc) { Systemoutprintln("MyThread interrupted"); } Systemoutprintln("MyThread terminating"); } } class JoinDemo { public static void main(String args[]) { Systemoutprintln("Main thread starting"); // Construct a thread based on MyThread Thread thrd = new Thread(new MyThread()); // Start execution of thrd thrdstart();
7:
Multithreading
// Wait until thrd ends try { thrdjoin(); } catch(InterruptedException exc) { Systemoutprintln("Main thread interrupted"); } Systemoutprintln("Main thread ending"); } }
Sample output is shown here (Your exact output may vary)
Main thread starting MyThread starting In MyThread, count is In MyThread, count is In MyThread, count is In MyThread, count is In MyThread, count is In MyThread, count is MyThread terminating Main thread ending
0 1 2 3 4 5
Options and Alternatives
The version of join( ) used in the example waits indefinitely for a thread to end This is often what you need, but sometimes you will want to limit the amount of time that the invoking thread will wait Remember, calling join( ) causes the invoking thread to suspend execution In some cases, it might be necessary for the invoking thread to resume execution even if the thread on which join( ) is called has not terminated To handle this possibility, Thread defines two additional forms of join( ) that let you specify a maximum wait time They are shown here: nal void join(long milliseconds) throws InterruptedException nal void join(long milliseconds, int nanoseconds) throws InterruptedException For both versions, the number of milliseconds to wait is specified by milliseconds The second form lets you specify nanosecond precision Another way to wait until a thread ends is to poll its state by calling isAlive( ) Although using join( ) is almost always a better, more efficient approach, using isAlive( ) may be appropriate in some special cases It is shown here: nal boolean isAlive( ) The isAlive( ) method returns true if the thread on which it is called is still active It returns false if the thread has ended
Copyright © OnBarcode.com . All rights reserved.