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Seminarinhalt
Unter anderem werden Fragen aus folgenden Themengebieten eingeübt:
- Handing date, time, text, numeric and boolean values
- Controlling Program Flow
- Utilizing Java Object-Oriented Approach
- Handling Exceptions
- Working with Arrays and Collections
- Working with Streams and Lambda expressions
- Package and deploy Java code and use the Java Platform Module System
- Manage concurrent code execution
- Use Java I/O API
- Access databases using JDBC
- Implement Localization
Programm
Handing date, time, text, numeric and boolean values
Controlling Program Flow
Utilizing Java Object-Oriented Approach
Handling Exceptions
Working with Arrays and Collections
Working with Streams and Lambda expressions
Package and deploy Java code and use the Java Platform Module System
Manage concurrent code execution
Use Java I/O API
Access databases using JDBC
Implement Localization
- Use primitives and wrapper classes, includin Math API, parentheses, type promotion and casting to evaluate arithmetic and boolean expressions
- Manipulate text, including text blocks, using String and StringBuilder classes
- Manipulate date, time, duration, period, instant and time-zone objects using Date-Time API
Controlling Program Flow
- Create program flow control constructs including if/else, switch statements and expressions, loops, and break and continue statements
Utilizing Java Object-Oriented Approach
- Declare and instantiate Java objects including nested class objects, and explain the object life-cycle including creation, reassigning references, and garbage collection
- Create classes and records, and define and use instance and static fields and methods, constructors, and instance and static initializers
- Implement overloading, including var-arg methods
- Understand variable scopes, apply encapsulation, and make objects immutable. Use local variable type inference, including using it to define lambda parameters
- Implement inheritance, including abstract and sealed classes. Override methods, including that of an Object class. Utilize polymorphism and type casting, and differentiate object type versus reference type. Identify object types using instance of operator and pattern matching
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default interface methods
- Create and use enumerations with fields, methods and constructors
Handling Exceptions
- Handle exceptions using try/catch/finally, try-with-resources, and multi-catch blocks, including custom exceptions
Working with Arrays and Collections
- Create Java arrays, List, Set, Map and Deque collections, and produce, remove, update, retrieve and sort their elements
Working with Streams and Lambda expressions
- Use Java object and primitive Streams, including lambda expressions implementing functional interfaces, to produce, filter, transform, consume, and sort data
- Perform decomposition, concatenation and reduction, and grouping and partitioning on sequential and parallel streams
Package and deploy Java code and use the Java Platform Module System
- Define modules and expose module content including through the use of reflection, and declare module dependencies, define services, providers and consumers
- Compile Java code, produce modular and non-modular jars, runtime images, and implement migration using unnamed and automatic modules
Manage concurrent code execution
- Create worker threads using Runnable and Callable, manage the thread lifecycle, including automations provided by different Executor services and concurrent API
- Develop thread-safe code, using different locking mechanisms and concurrent API
- Process Java collections concurrently and utilise parallel streams.
Use Java I/O API
- Read and write console and file data using I/O Streams
- Serialize and de-serialize Java objects
- Construct, traverse, create, read, and write Path objects and their properties using java.nio.file API
Access databases using JDBC
- Create connections, create and execute basic, prepared and callable statements, process query results and control transactions using JDBC API
Implement Localization
- Implement localization using locales, resource bundles, parse and format messages, dates, times, and numbers including currency and percentage values
Zielgruppen
- Java Entwickler
Vorkenntnisse
- Kenntnisse in der Programmiersprache Java
Wichtige Information
Die Teilnehmer*innen werden auf die aktuelle Oracle Certified Professional SE 17 Developer Zertifizierung (1Z0-829) vorbereitet.
Die Prüfung ist im Kurs nicht enthalten und kann in Pearson-VUE Testcenter gemacht werden.
Die Prüfung ist im Kurs nicht enthalten und kann in Pearson-VUE Testcenter gemacht werden.
