1Z1-805 試験問題を無料オンラインアクセス

Given the incomplete pseudo-code for a fork/join framework applications:
submit (Data) { if (Data.size < SMALL_ENOUGH) { _________(Data); // line X } else { List<Data> x = _________________(Data); // line Y for(Data d: x ______________(d); // line Z } }
And give the missing methods:
Process, submit, and splitInHalf
Which three insertions properly complete the pseudo-code?

• A.Insert submit at line Z
• B.Insert submit at line X
• C.Insert splitHalf at line Y
• D.Insert process at line X
• E.Insert process at line Z
• F.Insert process at line Y
• G.Insert splitHalf at line X

Given:
import java.io.*;
public class SampleClass {
public static void main(String[] args) throws IOException {
try {
String dirName = args[0];
File dir = new File(dirName);
File.createTempFile("temp", "log", dir);
} catch (NullPointerException | IOException e) {
e = new IOException("Error while creating temp file");
throw e;
}
}
}
What is the result?

• A.Compilation fails.
• B.An IOException with the default message is thrown at runtime.
• C.An IOException with the message Error while creating temp file is thrown at runtime.
• D.A temporary file is created in the specified directory.

Given the code fragment:
public static void main(String[] args) {
String source = "d:\\company\\info.txt";
String dest = "d:\\company\\emp\\info.txt";
//insert code fragment here Line **
} catch (IOException e) {
System.err.println ("Caught IOException: " + e.getmessage();
}
}
Which two try statements, when inserted at line **, enable the code to successfully move the file info.txt to the destination directory, even if a file by the same name already exists in the destination directory?

• A.try {Files.move (Paths.get(source), Paths.get(dest));
• B.try {Files.copy(Paths.get(source), Paths.get(dest));
  Files.delete(Paths.get(source));
• C.try {FileChannel in = new FileInputStream(source).getChannel();
  FileChannel out = new FileOutputStream(dest).getChannel ();
  in.transferTo (0, in.size(), out);
• D.try {BufferedReader br = Files.newBufferedReader(Paths.get(source), Charset.forName ("UTF-
  8"));
  BufferedWriter bw = Files.newBufferedWriter (Paths.get(dest), Charset.forName ("UTF-8"));
  String record = "";
  while ((record = br.readLine()) != null){
  bw.write (record);
  bw.newLine();
  }
  Files.delete(Paths.get(source));
• E.try {Files.copy(Paths.get(source), Paths.get(dest));
  Files.delete(Paths.get(source));

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

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

What design pattern does the Drivermanager.getconnection () method characterize?

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