Java Basics
- Define the scope of variables
- Define the structure of a Java class
- Create executable Java applications with a main method; Run a Java program from the command line; including console output.
- Import other Java packages to make them accessible in your code
- Compare and contrast the features and components of Java such as:platform independence, object orientation, encapsulation , etc.
working with Java Data Types
- 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.
Using Operators and decision constructs
- Use Java operators; including parentheses to override operator precedence
- Test equality between Strings and other objects using = = and equals ()
- Create if and if/else and ternary constructs
- Use a switch statement
Creating and Using Arrays
- Declare, instantiate, initialize and use a one-dimensional array
- Declare, instantiate, initialize and use multi-dimensional array
Using Loop Constructs
- 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
working with Methods and encapsulation
- Create methods with arguments and return values; Including overloaded methods
- Apply the Static keyword to methods and fields
- Create and overload constructors; including impact on default constructors
- Apply access Modifiers
- Apply encapsulation principles to a class
- Determine the effect upon object references and primitive values when they is passed into methods the values
working with Inheritance
- Describe inheritance and its benefits
- Develop code that demonstrates the use of polymorphism; Including overriding and object type versus reference type
- Determine when casting is necessary
- Use super and this to access objects and constructors
- Use abstract classes and interfaces
Handling Exceptions
- Differentiate among checked exceptions, unchecked exceptions, and Errors
- Create a try-catch block and determine how to 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, Arithmeticexcpetion, arrayindexoutofboundsexception , classcastexception) "
working with Selected classes from the Java API
- Manipulate data using the StringBuilder class and its methods
- Creating and manipulating 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
- Write a simple lambda expression, that consumes a lambda predicate expression
Basic knowledge (1)-Java SE 8 Programmer I (1z0-808)
