Oracle Certified Professional: Java SE 11 Developer Literacy (Beginner Level)

Topics covered

• create a class that implements a constructor in Java
• create a LocalDateTime object to display the current date and time
• create and access static members
• create and implement interfaces
• create a process and retrieve process information
• create class setter methods with value checking
• create JShell scratch and traditional variables
• create try-catch blocks and determine how exceptions alter program flow
• create unmodifiable collections, including Lists, Sets, and Maps
• declare and use List and ArrayList instances
• describe how JShell enhances an IDE
• describe how objects are stored in memory in Java
• describe the differences between class inheritance and interface inheritance, including Abstract classes
• describe the Modular JDK in Java SE 11
• implement methods that return values of a specified return type in Java
• list the performance enhancements in Oracle’s HotSpot Virtual Machine technology
• parse a date in a particular localized form and convert it to ISO format
• recall the differences between overloading, overriding, and hiding
• recall the prominent features of Native Memory Tracking
• recognize the JDK 11 core Java libraries
• use a standard for loop and nest a for loop within the body of another loop
• use Java SE 11 nest-based access control
• use public and private access modifiers
• use streams to filter processes
• use the args array in the main method to accept command line arguments
• use the save and open JShell commands
• work with Java serialization filters
• work with multiple references pointing to the same object in Java
• work with the jdeprscan tool
• write directives to control compilation