- Nome: 1Z0-808: Java SE 8 Programmer I
- Preço de USD 140.00
- Duração de 150 minutos
- 80 questões
- Média de 65%
- Chegar 15 minutos antes
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É altamente recomendável utilizar um editor de texto apenas com destacador de sintaxe e o compilador java pela linha de comando via javac. Assim será possível aprimorar a habilidade de detectar pequenos problemas de código, que em muitos casos são o foco do exame.
- Janeiro 1–Janeiro 11 Read Introduction, Appendix B, and Chapter 1
- Janeiro 12–Janeiro 14 Answer Chapter 1 Review Questions
- Janeiro 15–Janeiro 25 Read Chapter 2
- Janeiro 26–Janeiro 28 Answer Chapter 2 Review Questions
- Janeiro 29–Fevereiro 8 Read Chapter 3
- Fevereiro 9–Fevereiro 11 Answer Chapter 3 Review Questions
- Fevereiro 12–Fevereiro 22 Read Chapter 4
- Fevereiro 23–Fevereiro 25 Answer Chapter 4 Review Questions
- Fevereiro 26–Março 8 Read Chapter 5
- Março 9–Março 11 Answer Chapter 5 Review Questions
- Março 12–Março 22 Read Chapter 6
- Março 23–Março 2 Answer Chapter 6 Review Questions
- Março 26–Abril 2 Take practice exams and practice with flashcards
- Abril 3 Take exam
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Java Basics
- Define the scope of variables
- Define the structure of a Java class
- Create executable Java applications with a main method
- Import other Java packages to make them accessible in your code
- Develop code that uses wrapper classes such as Boolean, Double, and Integer
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Working With Java Data Types
- Declare and initialize variables
- Differentiate between object reference variables and primitive variables
- Read or write to object fields
- Explain an Object’s Lifecycle (creation, “dereference” and garbage collection)
- Call methods on objects
- Manipulate data using the StringBuilder class and its methods
- Creating and manipulating Strings
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Using Operators and Decision Constructs
- Use Java operators
- Use parenthesis to override operator precedence
- Test equality between Strings and other objects using == and equals()
- Create if and if/else constructs
- Use a switch statement
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Creating and Using Arrays
- Declare, instantiate, initialize and use a one-dimensional array
- Declare, instantiate, initialize and use multi-dimensional array
- Declare and use an ArrayList
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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
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Working with Methods and Encapsulation
- Create methods with arguments and return values
- Apply the static keyword to methods and fields
- Create an overloaded method
- Differentiate between default and user defined constructors
- Create and overload 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
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Working with Inheritance
- Implement inheritance
- Develop code that demonstrates the use of polymorphism
- 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
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Handling Exceptions
- Differentiate among checked exceptions, RuntimeExceptions and Errors
- Create a try-catch block and determine how exceptions alter normal program flow
- Describe what Exceptions are used for in Java
- Invoke a method that throws an exception
- Recognize common exception classes and categories
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Working with Selected classes from the Java API
- 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
- Write a simple Lambda expression that consumes a Lambda Predicate expression