With more than 700,000 copies sold to date, java in a Nutshell from O'Reilly is clearly the favorite resource amongst the legion of developers and programmers using java technology. And now, with the release of th...
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ISBN:
(纸本)9780596007737
With more than 700,000 copies sold to date, java in a Nutshell from O'Reilly is clearly the favorite resource amongst the legion of developers and programmers using java technology. And now, with the release of the 5.0 version of java, O'Reilly has given the book that defined the "in a Nutshell" category another impressive *** this latest revision, readers will find java in a Nutshell, 5th Edition, does more than just cover the extensive changes implicit in 5.0, the newest version of java. It's undergone a complete makeover--in scope, size, and type of coverage--in order to more closely meet the needs of the modern java *** wit, java in a Nutshell, 5th Edition now places less emphasis on coming to java from C and C++, and adds more discussion on tools and frameworks. It also offers new code examples to illustrate the working of APIs, and, of course, extensive coverage of java 5.0. But faithful readers take comfort: it still hasn't lost any of its core elements that made it such a classic to begin *** handy reference gets right to the heart of the program with an accelerated introduction to the java programming language and its key APIs--ideal for developers wishing to start writing code right away. And, as was the case in previous editions, java in a Nutshell, 5th Edition is once again chock-full of poignant tips, techniques, examples, and practical advice. For as long as java has existed, java in a Nutshell has helped developers maximize the capabilities of the program's newest versions. And this latest edition is no different.
The purpose of this study was to analyze the physical, mechanical, water absorption, and morphological structure of the Luffa cylindrica fiber-reinforced composite. Composite specimens are fabricated by Luffa cylindri...
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The purpose of this study was to analyze the physical, mechanical, water absorption, and morphological structure of the Luffa cylindrica fiber-reinforced composite. Composite specimens are fabricated by Luffa cylindrica fiber and java seed filler as reinforcement in the epoxy matrix. The composite laminates were prepared by using the conventional compression molding technique by varying the java seed filler percentage such as 0, 2, 4, 6, and 8 wt%. The Luffa cylindrica fiber was treated with a 5% NaOH solution at room temperature to enhance the fiber's roughness through the elimination of hemicellulose, lignin, wax, and moisture content. The java seeds were utilized as a filler in this experiment to enhance the composite's impact strength and bonding. The physical characteristics such as tensile, flexural, interlaminar shear strength, impact strength, and hardness were determined. In addition, scanning electron microscopy (SEM), Fourier transform infrared (FTIR) analysis, and water absorption test were performed for the Luffa cylindrica fiber-reinforced epoxy matrix. The maximum tensile strength, flexural strength, interlaminar shear strength, impact strength, and water absorption rate of the composite with 6 wt% of java seed filler are observed as 16.55 MPa, 43.49 MPa, 4.60 MPa, 11.67 KJ/m(2), and 6.21% respectively. The maximum hardness value of 94 is observed in the composite with 8 wt% of java seed fillers. The findings revealed that the physical and morphological characteristics of Luffa cylindrica fiber composites are significantly influenced by the addition of java seed fillers. Based on the research, the composites with java filler as a reinforcement material can be suggested for lightweight components in automobile and aerospace applications.
Injection attacks exploit vulnerabilities in how applications handle user input, allowing malicious code to infiltrate the execution environment of web applications, leading to severe consequences, such as data leaks ...
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Injection attacks exploit vulnerabilities in how applications handle user input, allowing malicious code to infiltrate the execution environment of web applications, leading to severe consequences, such as data leaks and system crashes. Traditional dynamic and static detection methods suffer from limitations in manual rule or pattern design and intraprocedural analysis, lacking the capability to automatically learn complex features. Meanwhile, deep learning models encounter challenges, such as feature redundancy and inefficiency, in processing long code sequences. Here, we propose a prototype for detecting Injection Vulnerabilities in java web applications based on Interprocedural analysis and the bidirectional encoder representations from transformers BERT-BiLSTM-CRF model (IVIB), effectively transforming vulnerability detection into text sequence annotation. IVIB employs interprocedural analysis to trace complete program data flow, control flow, method and class dependencies, reducing redundancy through a system dependency graph. Then, we develop intermediate language representation rules and conversion mechanisms specifically for java programs, symbolically representing code snippets and annotating them to construct a corpus. IVIB achieves remarkable results, with over 96% accuracy, precision, recall, and F1-score in binary classification, surpassing other state-of-the-art models in multiclassification performance. Evaluation on real-world projects demonstrates IVIB's effectiveness, detecting 28 vulnerabilities out of 30 vulnerable slices with low false positives and no false negatives.
Das vorliegende Buch ist eine Einführung in die Programmiersprache java. In den ersten Kapiteln werden die Grundlagen behandelt: Klassen, Objekte, Interfaces und Pakete. Weitere Kapitel befassen sich mit Applets ...
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ISBN:
(数字)9783662080436
Das vorliegende Buch ist eine Einführung in die Programmiersprache java. In den ersten Kapiteln werden die Grundlagen behandelt: Klassen, Objekte, Interfaces und Pakete. Weitere Kapitel befassen sich mit Applets und Benutzeroberflächen, der Ausnahmebehandlung, der Threadprogrammierung, mit Client-Server-Implementierung und dem Aufruf entfernter Methoden. Alle Sprachkonstrukte und die verwendeten Klassen der java-Standardbibliothek werden an Beispielen verdeutlicht. An die einzelnen Kapitel schließt sich eine Reihe von Übungsaufgaben an. Die kompletten Beispielprogramme und Lösungen zu den Übungen befinden sich auf der beiliegenden CD-ROM.
The prevalence of bulbuls in the Indonesian cage bird trade raises concerns about its impact on their distributions and, consequently, the ecological balance. This study delves into the trade dynamics of bulbuls, exam...
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The prevalence of bulbuls in the Indonesian cage bird trade raises concerns about its impact on their distributions and, consequently, the ecological balance. This study delves into the trade dynamics of bulbuls, examining their market prevalence and its correlation with their abundance in the wild and their suitable habitats. We conducted bird market surveys across java, supplemented by online trade surveys to ascertain market prevalence. Concurrently, we collected bulbul's presence data from three databases and field surveys from 2018 to 2023. We used a Random Forest algorithm to predict the suitable habitats for bulbuls. The findings revealed that 20 bulbul species, comprising 11 native and 9 non-native to java, were encountered in 20 bird markets, totalling 35,715 individuals. Sooty-headed (Pycnonotus aurigaster) and yellow-vented (P. goiavier) bulbuls, both Least Concern, dominated the field-RAI (Relative Abundance Index) and trade-RAI. Notably, rare species such as the strawheaded bulbul (P. zeylanicus, Critically Endangered) and extirpated from java, were present in markets. We found no relationship between the field-RAI and the trade-RAI, suggesting that all species were sought after regardless of their abundance. However, we found that threatened species face over-harvesting based on the ratio between trade-RAI and field-RAI. A significant portion of predicted suitable habitats for resident species fell outside bird-friendly areas. Urgent intervention measures, targeting small-scale agroforestry landowners and key sites for population protection, are imperative to mitigate the potential ecological consequences of the bulbul trade and ensure their continued contribution to tropical ecosystem health.
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