Java认证优势 

个人方面： 

n 技能验证与专业成长：Java认证是对一个人Java编程技能和知识的官方认可。这不仅验证了你的技能，而且通过学习和准备考 试的过程，你能够加深对Java的理解和掌握最新技术。 

n 增强就业竞争力：在求职过程中，Java认证可以作为你专业能力的一个亮点。许多雇主看重这种认证，因为它表明了你对专业 发展的承诺和对Java领域的深入了解。 

n 提升职业地位：持有Java认证的专业人员通常在同行中享有更高的职业地位。这种认证可以帮助你在团队中树立权威，提升你 的影响力。 

n 薪酬增长潜力：调查显示，拥有专业认证的IT专业人员往往能获得更高的薪资。Java认证可以作为薪酬谈判的一个有力依据。 

n 持续学习与更新：Java技术不断发展，认证的过程迫使专业人员不断学习和更新自己的知识库，这对职业发展至关重要。 

n 个人成就感：获得Java认证本身就是一个成就，它反映了你对自己职业生涯的投入和对专业知识的掌握。

认证介绍 

n 认证名称：Java SE 11 Developer Certification (1Z0-819) 

n 认证描述: 持有此认证的考生已表现出在 Java（标准版）软件开发方面的熟练程度，并受到全球各行业的 认可。 他们还展示了对 Java 编程语言、编码实践以及 Java SE 11 中新功能的利用的透彻而广泛的知识。 通过所需的考试，认证人员证明了 Java SE 的流利程度以及所需的宝贵专业技能的掌握 成为一名 Java 软 件开发人员。 这包括对面向对象、通过 lambda 表达式和流进行函数式编程以及模块化的深入理解。 

n 认证链接： Java SE 11 Developer (Also available in CHS for Taiwan) 1Z0-819 

n Format: Multiple Choice  • Duration: 90 Minutes • ExamPrice:¥1,671 • Number of Questions: 50 • Passing Score: 68% • Validation: Exam has been validated for product version Java 11

考试要点 

n Working with Java data types • Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting • Handle text using String and StringBuilder classes • Use local variable type inference, including as lambda parameters 

n Controlling Program Flow • Create and use loops, if/else, and switch statements 

n Java Object-Oriented Approach • Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles  (including creation, dereferencing by reassignment, and garbage collection) • Define and use fields and methods, including instance, static and overloaded methods • Initialize objects and their members using instance and static initialiser statements and constructors • Understand variable scopes, apply encapsulation and make objects immutable • Create and use subclasses and superclasses, including abstract classes • Utilize polymorphism and casting to call methods, differentiate object type versus reference type • Create and use interfaces, identify functional interfaces, and utilize private, static, and default  methods • Create and use enumerations

考试要点 

n Exception Handling • Handle exceptions using try/catch/finally clauses, try-with-resource, and multi-catch statements • Create and use custom exceptions 

n Working with Arrays and Collections • Use generics, including wildcards • Use a Java array and List, Set, Map and Deque collections, including convenience methods • Sort collections and arrays using Comparator and Comparable interfaces 

n Working with Streams and Lambda expressions • Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package • se Java Streams to filter, transform and process data • Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams 

n Java Platform Module System • Deploy and execute modular applications, including automatic modules • Declare, use, and expose modules, including the use of services 

n Concurrency • Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API • Develop thread-safe code, using different locking mechanisms and java.util.concurrent API

考试要点 

n Java I/O API • Read and write console and file data using I/O Streams • Implement serialization and deserialization techniques on Java objects • Handle file system objects using java.nio.file API 

n Secure Coding in Java SE Application • Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data  integrity • Secure resource access including filesystems, manage policies and execute privileged code 

n Database Applications with JDBC • Connect to and perform database SQL operations, process query results using JDBC API 

n Localization • Implement Localization using Locale, resource bundles, and Java APIs to parse and format messages, dates, and  numbers 

n Annotations • Create, apply, and process annotations

需要学习的课程 

n 课程名称：Become a Java SE 11 Developer 

n 课程描述：该课程提供了超过 30 ⼩时的专家培训，⾯向具有⼀定编程经验的学⽣，是Java编程语⾔的综合培训， 完成本课程后，您应该能够掌握：描述⾯向对象的编程⽅法；解释 Java 语法和编码约定； 使⽤ Java 构造和运 算符；使⽤核⼼ Java API，例如 Collections、Streams、IO 和 Concurrency；部署 Java SE 应⽤程序。 

n 课程内容：包视频括（中⽂字幕）、脚本、在线实验和指导⼿册 

n 课程链接：Java SE 11 Developer

Java- 目标岗位

Java程序员/开发工程师 软件工程师 WEB开发工程师 企业应用程序开发者 软件架构师 测试工程师 技术顾问

认证样版