1ZO-819
The content focuses on several advanced Java SE topics essential for developing robust and efficient applications. It covers concurrency management, emphasizing the creation and handling of worker threads through Runnable and Callable interfaces, as well as the utilization of ExecutorService and the java.
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1ZO-819 Localization Implement Localization using Locale, resource bundles, and Java APIs to parse and format messages, dates, and numbers Working with Streams ans Lambda Expressions Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams Use Java Streams to filter, transform and process data Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package Exception Handling Create and use custom exceptions Handle exceptions using try/catch/finally clauses, try-with-resource, and multi-catch statements Working with Arrays and Collections Sort collections and arrays using Comparator and Comparable interfaces Use a Java array and List ,SET,Map and Deque Collections, including convenience methods Use generics, including wildcards Annotations Create, apply, and process annotations Java I/O API Handle file system objects using java.nio.file API Implement serialization and deserialization techniques on java objects Read and write console and file data using I/O Streams Working with Java Data Types Use local variable type inference, including as lambda parameters Handle text using String and StringBuilder/StringBuffer Classes Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting Secure Coding in Java SE Application Secure resource access including filesystems, manage policies and execute privileged code Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity Concurrency Develop thread-safe code, using different locking mechanisms and java.util.concurrent API Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API Program Flow Control Create and use loops, if/else, and switch statements DataBase Applications with JDBC Connect to and perform database SQL operations, process query results using JDBC API Java Object Oriented Approach create and use enumerations Create and us interfaces, identify functional interfaces , and utilize private , static and default methods Utilize polymorphism and casting to call methods, differentiate object type versus reference type Create and use subclasses and superclasses , including abstract classes Understand variable scopes, apply encapsulation and make objects immutable Ininisialize objects and there members using instance and static initialiser statements and constructors.(remember forward referencing) Define and use fields and methods, include instance,static and overloaded methods Explain object's lifecycle(including creation , dereferencing by reassignlent, and garbage collection) Declare and instantiate Java objects including nested class objects Java Platform Module System Declare , use and expose modules , including the use of services Deploy and execute modular applications , including automatique modules
