Online Access Free 1Z0-804 Exam Questions

Which code fragment correctly appends "Java 7" to the end of the file /tmp/msg.txt?

• A.FileWriter w = new FileWriter("/tmp/msg.txt", FileWriter.MODE_APPEND);
  append("Java 7");
  close();
• B.FileWriter w = new FileWriter("/tmp/msg.txt");
  append("Java 7");
  close();
• C.FileWriter w = new FileWriter("/tmp/msg.txt", Writer.MODE_APPEND);
  append("Java 7");
  close();
• D.FileWriter w = new FileWriter("/tmp/msg.txt", true);
  append("Java 7");
  close();

Which is a key aspect of composition?

• A.Creating abstract classes
• B.Implementing the composite interface
• C.Using inheritance
• D.Method delegation

Given:

Which two statements are true about the writer class?

• A.It compiles if the code void write (String s); is added at line***.
• B.It compiles if the code void write (); is added at line ***.
• C.It compiles without any changes.
• D.It compiles if the code void write (string s) { } is added at line ***.
• E.It compiles if the code write () {}is added at line ***.

Given this code fragment:

Assume that the SQL query returns records.
What is the result?

• A.Compilation fails due to error at line 17
• B.The program prints each record
• C.Compilation fails at line 14
• D.The program prints Error

Given: Which fragment, inserted in the Books interface, enables the code to compile?

• A.public String type = "Fiction"; public abstract String getType();
• B.public String type = "Fiction"; public static String getType();
• C.public static String type; public abstract String getType();
• D.public abstract String type; public abstract String getType();