Online Access Free 1Z0-805 Practice Test

Given:
public class DAOManager {
public AccountDAO getAccountDAO() {
return new AccountJDBCDAO();
}
}
Which design pattern best describes the class?

• A.Composition
• B.DAO
• C.Singleton
• D.Factory

Given the code fragment:
public class TestString {
public static void main(String[] args) {
String str=null;
switch(str) {
case "":
System.out.println("blank"); break;
case "null":
System.out.println("NULL"); break;
default:
System.out.println("invalid"); break;
}
}
}
What is the result?

• A.Invalid
• B.Blank
• C.NULL
• D.An exception is thrown at runtime
• E.Compilation fails

Which three must be used when using the Java.util.concurrent package to execute a task that returns a result without blocking?

• A.Runnable
• B.Executor
• C.ExecutorService
• D.Callable
• E.Future
• F.Thread

The current working directory is named finance.
Which two code fragments allow you to write the salary.dat file if it does not exist under "finance\payroll"?

• A.public static void setFileContent (String[] s) throws IOException {
  path p=paths.get ("payroll\\salary.dat");
  File file=p.toAbsolutePath(LinkOption.NOFOLLOW_LINKS).toFile();
  try (BufferWriter br = new BufferWriter (new FileWriter(File))) {
  br.write ("experience new features of java");
  }
  }
• B.public static void setFileContent (String[] s) throws IOException {
  File file=new File ("payroll\\salary.dat").getAbsolutePath();
  try (BufferWriter br = new BufferWriter (new FileWriter(File))) {
  br.write ("experience new features of java");
  }
  }
• C.public static void setFileContent (String[] s) throws IOException {
  File file= new file ("payroll\\salary.dat").getCanonicalFile();
  try (BufferWriter br = new BufferWriter (new FileWriter(File))) {
  br.write ("experience new features of java");
  }
  }
• D.public static void setFileContent (String[] s) throws IOException {
  File file= new File ("payroll\\salary.dat").getCanonicalFile();
  try (BufferWriter br = new BufferWriter (new FileWriter(File))) {
  br.write ("experience new features of java");
  }
  }
• E.public static void setFileContent (String[] s) throws IOException {
  path p=paths.get("payroll\\salary.dat");
  File file=p.toAbsolutePath().toFile();
  try (BufferWriter br = new BufferWriter (new FileWriter(File))) {
  br.write ("experience new features of java");
  }
  }

Given a resource bundle MessageBundle, what is the name of the default bundle file?

• A.MessageBundle.java
• B.MessageBundle.properties
• C.MessageBundle.profile
• D.MessageBundle.xml