Online Access Free 1Z1-804 Practice Test

Which code fragment demonstrates the proper way to handle JDBC resources?

• A.try {
  ResultSet rs = stmt.executeQuery (query);
  Statement stmt = con.createStatement();
  while (rs.next()) (/* . . . */)
  } finally {
  rs.close();
  stmt.close();
  }
• B.try {
  Statement stmt = con.createStatement();
  ResultSet rs = stmt.executeQuery (query);
  while (rs.next()) (/* . . . */)
  } catch (SQLException e) {}
• C.try {
  Statement stmt = con.createStatement();
  ResultSet rs = stmt.executeQuery (query);
  while (rs.next()) (/* . . . */)
  } finally {
  rs.close();
  stmt.close();
  }
• D.try {
  ResultSet rs = stmt.executeQuery (query);
  statement stmt = con.createStatement();
  while (rs.next()) (/* . . . */)
  } catch (SQLException e) {}

Given the code fragment:

What is the result?

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

Given:

Which two statements concerning the OO concepts "IS-A" and "HAS-A" are true?

• A.Flommer has-a String.
• B.Tagget has-a Glommer.
• C.Tagget has-a doStuff()
• D.Flimmer is-a Glommer.
• E.Tagget is-a Glommer.
• F.Flimmer is-a ArrayList.

A valid reason to declare a class as abstract is to:

• A.define a class that prevents variable state from being stored when object Instances are serialized
• B.define a class with methods that cannot be concurrently called by multiple threads
• C.define methods within a parent class, which may not be overridden in a child class
• D.prevent a class from being extended
• E.define common method signatures in a class, while forcing child classes to contain unique method implementations
• F.prevent instance variables from being accessed

Given:

Which three values will appear in the output?

• A.5
• B.b2
• C.a2
• D.a1
• E.7
• F.b1