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garbage collection
1, 7
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Create classes and records, and define and use instance and static fields and methods, constructors, and instance and static initializers
|
5, 6, 7
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Implement overloading, including var-arg methods
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5
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Understand variable scopes, use local variable type inference, apply encapsulation, and make objects immutable
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1, 6, 7, 8
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Implement polymorphism and differentiate object type versus reference type. Perform type casting, identify object types using instanceof operator and pattern matching
|
3, 6, 7
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Create and use interfaces, identify functional interfaces, and utilize private, static, and default interface methods
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7, 8
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Create and use enumerations with fields, methods and constructors
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7
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Handling Exceptions
|
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Handle exceptions using try/catch/finally, try-with-resources, and multi-catch blocks, including custom exceptions
|
11
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Working with Arrays and Collections
|
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Create Java arrays, List, Set, Map, and Deque collections, and add, remove, update, retrieve and sort their elements
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4, 9
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Working with Streams and Lambda expressions
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Use Java object and primitive Streams, including lambda expressions implementing functional interfaces, to supply, filter, map, consume, and sort data
|
10
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Perform decomposition, concatenation and reduction, and grouping and partitioning on sequential and parallel streams
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10, 13
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Packaging and deploying Java code and use the Java Platform Module System
|
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Define modules and their dependencies, expose module content including for reflection. Define services, producers, and consumers
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12
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Compile Java code, produce modular and non-modular jars, runtime images, and implement migration using unnamed and automatic modules
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12
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Managing concurrent code execution
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Create worker threads using Runnable and Callable, manage the thread lifecycle, including automations provided by different Executor services and concurrent API
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13
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Develop thread-safe code, using different locking mechanisms and concurrent API
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13
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Process Java collections concurrently including the use of parallel streams
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13
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Using Java I/O API
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Read and write console and file data using I/O Streams
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14
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Serialize and de-serialize Java objects
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14
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Create, traverse, read, and write Path objects and their properties using java.nio.file API
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14
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Accessing databases using JDBC
|
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Create connections, create and execute basic, prepared and callable statements, process query results and control transactions using JDBC API
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15
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Implementing Localization
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Implement localization using locales, resource bundles, parse and format messages, dates, times, and numbers including currency and percentage values
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11
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Java Foundations (1Z0-811)
The following table provides a breakdown of this book's exam coverage for the Java Foundations (1Z0-811) exam, showing you the chapter where each objective or subobjective is covered.
A few topics
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