13: THREADS in Java

Generate QR Code JIS X 0510 in Java 13: THREADS
CHAPTER 13: THREADS
QR Code 2d Barcode Generator In Java
Using Barcode drawer for Java Control to generate, create Denso QR Bar Code image in Java applications.
// (1) // (2) // (3)
Barcode Encoder In Java
Using Barcode maker for Java Control to generate, create bar code image in Java applications.
Select the one correct answer (a) The program will fail to compile (b) The program will compile without errors and will print |Extender| twice and |Implementer| once, in some order, every time the program is run (c) The program will compile without errors and will print|Extender| once and |Implementer| twice, in some order, every time the program is run (d) The program will compile without errors and will print |Extender| once and |Implementer| once, in some order, every time the program is run (e) The program will compile without errors and will simply terminate without any output when run (f) The program will compile without errors, and will print |Extender| once and |Implementer| once, in some order, and terminate because of an runtime error 136 What will be the result of attempting to compile and run the following program
Bar Code Recognizer In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
class R1 implements Runnable { public void run() { Systemoutprint(ThreadcurrentThread()getName()); } } public class R2 implements Runnable { public void run() { new Thread(new R1(),"|R1a|")run(); new Thread(new R1(),"|R1b|")start(); Systemoutprint(ThreadcurrentThread()getName()); } public static void main(String[] args) { new Thread(new R2(),"|R2|")start(); } }
Generating QR Code In Visual C#.NET
Using Barcode generator for .NET Control to generate, create QR image in Visual Studio .NET applications.
Select the one correct answer (a) The program will fail to compile (b) The program will compile without errors and will print |R1a| twice and |R2| once, in some order, every time the program is run (c) The program will compile without errors and will print|R1b| twice and |R2| once, in some order, every time the program is run (d) The program will compile without errors and will print |R1b| once and |R2| twice, in some order, every time the program is run (e) The program will compile without errors and will print |R1a| once, |R1b| once, and |R2| once, in some order, every time the program is run
QR Code 2d Barcode Maker In VS .NET
Using Barcode creation for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
134: THREAD CREATION
Print QR Code In VS .NET
Using Barcode generation for Visual Studio .NET Control to generate, create QR Code image in Visual Studio .NET applications.
What will be the result of attempting to compile and run the following program
Denso QR Bar Code Drawer In Visual Basic .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create QR Code JIS X 0510 image in .NET framework applications.
public class Threader extends Thread { Threader(String name) { super(name); } public void run() throws IllegalStateException { Systemoutprintln(ThreadcurrentThread()getName()); throw new IllegalStateException(); } public static void main(String[] args) { new Threader("|T1|")start(); } }
Barcode Drawer In Java
Using Barcode drawer for Java Control to generate, create barcode image in Java applications.
Select the one correct answer (a) The program will fail to compile (b) The program will compile without errors, will print |T1|, and terminate normally every time the program is run (c) The program will compile without errors, will print|T1|, and throw an IllegalStateException, every time the program is run (d) None of the above 138 What will be the result of attempting to compile and run the following program
UPC-A Supplement 5 Creation In Java
Using Barcode generation for Java Control to generate, create GTIN - 12 image in Java applications.
public class Worker extends Thread { public void run() { Systemoutprint("|work|"); } public static void main(String[] args) { Worker worker = new Worker(); workerstart(); workerrun(); workerstart(); } }
GTIN - 13 Drawer In Java
Using Barcode creation for Java Control to generate, create EAN / UCC - 13 image in Java applications.
Select the one correct answer (a) The program will fail to compile (b) The program will compile without errors, will print |work| twice, and terminate normally every time the program is run (c) The program will compile without errors, will print|work| three times, and terminate normally every time the program is run (d) The program will compile without errors, will print|work| twice, and throw an IllegalStateException, every time the program is run (e) None of the above
Generate Code 39 In Java
Using Barcode encoder for Java Control to generate, create Code39 image in Java applications.
CHAPTER 13: THREADS
Code 128 Code Set B Generation In Java
Using Barcode maker for Java Control to generate, create Code 128B image in Java applications.
135 Synchronization
ISSN - 10 Creation In Java
Using Barcode creation for Java Control to generate, create ISSN image in Java applications.
Threads share the same memory space, ie, they can share resources However, there are critical situations where it is desirable that only one thread at a time has access to a shared resource For example, crediting and debiting a shared bank account concurrently among several users without proper discipline, will jeopardize the integrity of the account data Java provides high-level concepts for synchronization in order to control access to shared resources
Encode ANSI/AIM Code 128 In .NET
Using Barcode maker for Visual Studio .NET Control to generate, create Code-128 image in .NET framework applications.
Locks
EAN13 Generation In .NET Framework
Using Barcode drawer for Visual Studio .NET Control to generate, create EAN13 image in Visual Studio .NET applications.
A lock (also called a monitor) is used to synchronize access to a shared resource A lock can be associated with a shared resource Threads gain access to a shared resource by first acquiring the lock associated with the resource At any given time, at most one thread can hold the lock and thereby have access to the shared resource A lock thus implements mutual exclusion (also known as mutex) In Java, all objects have a lock including arrays This means that the lock from any Java object can be used to implement mutual exclusion By associating a shared resource with a Java object and its lock, the object can act as a guard, ensuring synchronized access to the resource Only one thread at a time can access the shared resource guarded by the object lock The object lock mechanism enforces the following rules of synchronization: A thread must acquire the object lock associated with a shared resource, before it can enter the shared resource The runtime system ensures that no other thread can enter a shared resource if another thread already holds the object lock associated with it If a thread cannot immediately acquire the object lock, it is blocked, ie, it must wait for the lock to become available When a thread exits a shared resource, the runtime system ensures that the object lock is also relinquished If another thread is waiting for this object lock, it can try to acquire the lock in order to gain access to the shared resource It should be made clear that programs should not make any assumptions about the order in which threads are granted ownership of a lock Classes also have a class-specific lock that is analogous to the object lock Such a lock is actually a lock on the javalangClass object associated with the class Given a class A, the reference Aclass denotes this unique Class object The class lock can be used in much the same way as an object lock to implement mutual exclusion The keyword synchronized and the lock mechanism form the basis for implementing synchronized execution of code There are two ways in which execution of code can be synchronized, by declaring synchronized methods or synchronized code blocks
Code-39 Printer In Visual C#
Using Barcode generation for Visual Studio .NET Control to generate, create Code39 image in .NET framework applications.
ECC200 Encoder In VB.NET
Using Barcode generation for .NET framework Control to generate, create Data Matrix 2d barcode image in VS .NET applications.
Barcode Printer In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create barcode image in ASP.NET applications.