1Z1-804 試験問題を無料オンラインアクセス

Given the code fragment:

What is the result?

• A.Java
• B.Java 7
• C.Java 7, Java 6
• D.Java 6
• E.Java 7 java 6

Given that myFile.txt contains:

What is the result?

• A.Compilation fails
• B.1: First
  2: Second
  3:
  First
• C.1: First
  2: First
  3:
  First
• D.1: First
  2: Second
  3:
  Third
• E.IOExcepton

Given the code fragment:

What is the result, if the file myfile.txt does not exist?

• A.A runtime exception is thrown at line 4
• B.Compilation fails
• C.A runtime exception is thrown at line 7
• D.Creates a new file and prints no output

Given the following files in doc directory:
-Index.htm
-Service.html
-Logo.gif
-Title.jpg
And the code fragment:

What is the result, if doc is present in the current directory?

• A.No output is produced.
• B.index.htm userguide.txt logo.gif
• C.index.htm service.html userguide.txt logo.gif
• D.index.htm

Which two are true about Singletons?

• A.A Singleton implements a factory method.
• B.Singletons can be designed to be thread-safe.
• C.A Singleton improves a class's cohesion.
• D.A Singleton has only the default constructor.
• E.A Singleton must implement serializable.