Java Foundations 1Z0-811 Exam Practice Test

Java Foundations 1Z0-811 Exam Practice Test cover

This book contains 114 unique practice questions and answers to help you prepare for the Java Foundations Exam, 1Z0-811.

Each question is annotated with the specific objective to which it pertains and links to website content where you can find more information about the topic covered by the question.

This is not a brain dump and these are not the actual questions on the exam, but they are representative of the types of questions and of the information you will need to know to pass the exam.

The practice test contains questions based on the following exam objectives:

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 Operators

  • 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 variable
  • 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