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Java Threads (a review, and some new things)
Java Threads (a review, and some new things)

... What are these 22 threads doing??? ...
PDF - 4up
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... trick is to create a new larger array to replace the current array if the current array cannot hold new elements in the list. Initially, an array, say data of Object[] type, is created with a default size. When inserting a new element into the array, first ensure there is enough room in the array. I ...
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... • Main advantages DBS-independent Application development independent from DBS (as opposed to Embedded SQL precompiler approach, see below) Easy to connect to multiple DB • Microsoft implementation ODBC (= Open Database Connectivity) de facto standard, available not only for MS products ...
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... • An interrupt signals a thread to stop what it is doing and do something else. • The programmer decides exactly how a thread responds to an interrupt. • Very common for the thread to terminate • A thread sends an interrupt by invoking interrupt on the Thread object to be interrupted. • The interrup ...
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Lecture 13 Introduction to High-Level Programming (S&G, §§7.1–7.6)
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ppt - TAMU Computer Science Faculty Pages

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43slide - SIUE Computer Science
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... RMI vs. Socket-Level Programming RMI enables you to program at a higher level of abstraction. It hides the details of socket server, socket, connection, and sending or receiving data. It even implements a multithreading server under the hood, whereas with socket-level programming you have to explic ...
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Chapter 4 Methods
Chapter 4 Methods

... Unicode between 0 and FFFF in hexadecimal (65535 in decimal). To generate a random character is to generate a random integer between 0 and 65535 using the following expression: (note that since 0 <= Math.random() < 1.0, you have to add 1 to 65535.) (int)(Math.random() * (65535 + 1)) Liang, Introduct ...
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Java performance

In software development, the Java programming language was historically considered slow because compiled Java programs run on the Java Virtual Machine rather than directly on the computer's processor like C and C++ programs do; however, in newer Java versions the execution performance has been optimized significantly mainly thanks to the introduction of just-in-time compilation. Java performance is a matter of concern because lots of business software has been written in Java after the language quickly became popular in the late 1990s and early 2000s. Concerns over its performance led to the development of specialized hardware able to run Java directly, dubbed Java processors. The performance of a compiled Java program depends on how optimally its particular tasks are managed by the host Java Virtual Machine (JVM), and how well the JVM takes advantage of the features of the hardware and OS in doing so. Thus, any Java performance test or comparison has to always report the version, vendor, OS and hardware architecture of the used JVM. In a similar manner, the performance of the equivalent natively compiled program will depend on the quality of its generated machine code, so the test or comparison also has to report the name, version and vendor of the used compiler, and its activated optimization directives.Historically, the execution speed of Java programs improved significantly due to the introduction of Just-In Time compilation (JIT) (in 1997/1998 for Java 1.1), the addition of language features supporting better code analysis, and optimizations in the JVM itself (such as HotSpot becoming the default for Sun's JVM in 2000). Hardware execution of Java bytecode, such as that offered by ARM's Jazelle, can also offer significant performance improvements.
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