• Declare and initialize variables (including casting of primitive data types)
• Differentiate between object reference variables and primitive variables
• Know how to read or write to object fields
• Explain an Object’s Lifecycle (creation, “dereference by reassignment” and garbage collection)
• Develop code that uses wrapper classes such as Boolean, Double, and Integer

• Use Java operators; use parentheses to override operator precedence
• Test equality between Strings and other objects using == and equals () [Covered in Test 4 and Test 6]
• Create if and if/else and ternary constructs
• Use a switch statement

• Declare, instantiate, initialize and use a one-dimensional array
• Declare, instantiate, initialize and use multi-dimensional arrays

• Create and use while loops
• Create and use for loops including the enhanced for loop
• Create and use do/while loops
• Compare loop constructs
• Use break and continue

• Create methods with arguments and return values; including overloaded methods
• Apply the static keyword to methods and fields
• Create and overload constructors; differentiate between default and user defined constructors
• Apply access modifiers
• Apply encapsulation principles to a class
• Determine the effect upon object references and primitive values when they are passed  into methods that change the values

• Describe inheritance and its benefits
• Develop code that makes use of polymorphism; develop code that overrides methods;  differentiate between the type of a reference and the type of an object
• Determine when casting is necessary
• Use super and this to access objects and constructors
• Use abstract classes and interfaces

• Differentiate among checked exceptions, unchecked exceptions, and Errors
• Create a try-catch block and determine how exceptions alter normal program flow
• Describe the advantages of Exception handling
• Create and invoke a method that throws an exception
• Recognize common exception classes (such as NullPointerException, ArithmeticException, ArrayIndexOutOfBoundsException, ClassCastException)

• Manipulate data using the StringBuilder class and its methods
• Create and manipulate Strings

• Create and manipulate calendar data using classes from java.time.LocalDateTime,  java.time.LocalDate, java.time.LocalTime, java.time.format.DateTimeFormatter, java.time.Period

• Declare and use an ArrayList of a given type [Questions on ArrayList will also test the knowledge of topics covered in previous tests, such as, Wrapper classes (boxing and unboxing), equals(Object) method to check equality etc.]
• Write a simple Lambda expression that consumes a Lambda Predicate expression

NOTE: If you prefer exam simulation to assess your preparation for the certification exam, then you can enroll in my other course titled “Java Certification : OCA (1Z0-808) Exam Simulation [2022]”, which contains the same questions but pattern in Exam Simulation course is similar to real exam.

Disclaimer: These questions are not real examination questions / dumps. These questions  are designed based on real exams in terms of pattern and complexity to help you understand the type of expected questions from each exam objective.