Java2007-09-08
readLine() to read strings from console input
To read a string from the keyboard, use the version of readLine() that is a member of the BufferedReader class. Its general form is shown here:
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Java2007-09-08
Using read() to read one character at a time from console input
Each time that read() is called, it reads a character from the input stream and returns it as an integer value. It returns –1 when the end of the stream is encountered.
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What is a deadlock and how to avoid it in Java
A special type of error that you need to avoid that relates specifically to multitasking is deadlock, which occurs when two threads have a circular dependency on a pair of synchron
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wait(), notify() and notifyAll() in Java - A tutorial
To avoid polling, Java includes an elegant interrocess communication mechanism via the wait(), notify(), and notifyAll() methods. These methods are implemented as final methods in
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call() and synchronized keyword - When and how to use in Java
Synchronization is easy in Java, because all objects have their own implicit monitor associated with them. To enter an object's monitor, just call a method that has been modified w
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setPriority() and getPriority() in Java
Thread priorities are used by the thread scheduler to decide when each thread should be allowed to run. In theory, higher-priority threads get more CPU time than lower-priority thr
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Java2007-09-08
isAlive() and join() in Java
The main thread must be the last thread to finish. Sometimes this is accomplished by calling sleep() within main(), with a long enough delay to ensure that all child threads termin
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A simple Thread sample in Java
The easiest way to create a thread is to create a class that implements the Runnable interface. The second way to create a thread is to create a new class that extends Thread, and
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How to use 'implements Runnable' in Java
The easiest way to create a thread is to create a class that implements the Runnable interface. Runnable abstracts a unit of executable code. You can construct a thread on any obje
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The Main Thread in Java
When a Java program starts up, one thread begins running immediately. This is usually called the main thread of your program, because it is the one that is executed when your progr
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What is Multithreaded programming?
Unlike most other computer languages, Java provides built-in support for multithreaded programming. A multithreaded program contains two or more parts that can run concurrently. Ea
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Use of 'finally' in Java
When exceptions are thrown, execution in a method takes a rather abrupt, nonlinear path that alters the normal flow through the method. Depending upon how the method is coded, it i
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