Java Foundations

Esta página tem o objetivo de abordar os tópicos da prova de certificação Java Foundations código da prova: 1Z0-811. Escrevi em outro post algumas dicas de como se preparar, agendar e realizar a prova, para ver clique aqui.

Comandos utilizados nesta página foram executados no Java versão 8.

O conteúdo da prova para a certificação pode ser visualizado no site da Oracle no link abaixo:

☕ Java Foundations

What is Java?

✓ Describe the features of Java

✓ Describe the real-world applications of Java

Java Basics

✓ Describe the Java Development Kit (JDK) and the Java Runtime Environment (JRE)
✓ Describe the components of object-oriented programming

✓ Describe the components of a basic Java program
✓ Compile and execute a Java program

Basic Java Elements

✓ Identify the conventions to be followed in a Java program
✓ Use Java reserved words
✓ Use single-line and multi-line comments in Java programs

✓ Import other Java packages to make them accessible in your code
✓ Describe the java.lang package

Working with Java Data Types

✓ Declare and initialize variables including a  variable using final

✓ Cast a value from one data type to another including automatic and manual promotion
✓ Declare and initialize a String variable

Working with Java Operator

✓ Use basic arithmetic operators to manipulate data including +, -, *, /, and %
✓ Use the increment and decrement operators
✓ Use relational operators including ==, !=, >, >=, <, and <=

✓ Use arithmetic assignment operators
✓ Use conditional operators including &&, ||, and ?
✓ Describe the operator precedence and use of parenthesis

Working with the String Class

✓ Develop code that uses methods from the String class

✓ Format Strings using escape sequences including %d, %n, and %s

Working with the Random and Math Classes

✓ Use the Random class

✓ Use the Math class

Using Decision Statements

✓ Use the decision making statement  (if-then and if-then-else)
✓ Use the switch statement

✓ Compare how == differs between primitives and objects
✓ Compare two String objects by using the compareTo and equals methods

Using Looping Statements

✓ Describe looping statements
✓ Use a for loop including an enhanced for loop
✓ Use a while loop

✓ Use a do- while loop
✓ Compare and contrast the for, while, and do-while loops
✓ Develop code that uses break and continue statements

Debugging and Exception Handling

✓ Identify syntax and logic errors
✓ Use exception handling

✓ Handle common exceptions thrown
✓ Use try and catch blocks

Arrays and ArrayLists 

✓ Use a one-dimensional array
✓ Create and manipulate an ArrayList

✓ Traverse the elements of an ArrayList by using iterators and loops including the enhanced for loop
✓ Compare an array and an ArrayList

 Classes and Constructors

✓ Create a new class including a main method
✓ Use the private modifier
✓ Describe the relationship between an object and its members
✓ Describe the difference between a class variable, an instance variable, and a local

✓ Develop code that creates an object’s default constructor and modifies the object’s fields
✓ Use constructors with and without parameters
✓ Develop code that overloads constructors

Java Methods

✓ Describe and create a method
✓ Create and use accessor and mutator methods

✓ Create overloaded methods
✓ Describe a static method and demonstrate its use within a program