Prep and try our 1Z1-804 valid and latest training questions & answers

Given:

What is the result?

• A. Compilation fails at line 12
• B. Compilation fails at line 11
• C. Cue sports, Cue sports
• D. Compilation fails at line 13
• E. Compilation fails at line 9

Given the code fragment:

What is the result when the result.txt file already exists in c:\student?

• A. The program replaces the file contents as well as the file attributes and prints Not equal.
• B. The program replaces the file contents and the file's attributes and prints Equal.
• C. An UnsupportedOperationException is thrown at runtime.
• D. The program replaces only the file attributes and prints Not equal.

Given the interface:
Public interface Idgenerator {
int getNextId();
}
Which class implements IdGenerator in a thread-safe manner, so that no threads can get a duplicate id value current access?

• A. Public class Generator Implements idGenerator {
  private int id = 0;
  return ++id;
  }}
• B. Public class generator Implements IdGenerator {
  Private AtomicInteger id = new AtomicInteger (0);
  return id.incrementAndget();
  }}
• C. Public class Generator Implements IdGenerator {
  private int id = 0;
  public int getNextId() {
  synchronized (new Generator()) {
  return ++id;
  }}}
• D. Public class Generator Implements IdGenerator {
  private volatile int Id = 0;
  return ++Id;
  }
• E. Public class Generator Implements IdGenerator {
  private int id = 0;
  public int getnextId() {
  synchronized (id) {
  return ++id;
  }}}

Given:

Which three are true?

• A. BasicCar is-a Car.
• B. SuperCar takes advantage of polymorphism
• C. BasicCar has-a Car
• D. SuperCar is-a Car.
• E. BasicCar uses composition.
• F. SuperCar uses composition.

Given: javac Test.java java ea Test

And the commands:
What is the result?

• A. Standard Edition is printed and an Assertion Error is thrown
• B. Standard Edition Enterprise Edition Micro Edition
• C. Compilation fails
• D. Standard Edition class java.lang.AssertionError Micro Edition