1Z0-809 Free Practice Test

Given:

Which two interfaces can you use to create lambda expressions? (Choose two.)

1. A. T
2. B. R
3. C. P
4. D. S
5. E. Q
6. F. U

Correct Answer: AF

Given the content of /resourses/Message.properties: welcome1=”Good day!”
and given the code fragment: Properties prop = new Properties ();
FileInputStream fis = new FileInputStream (“/resources/Message.properties”); prop.load(fis);
System.out.println(prop.getProperty(“welcome1”)); System.out.println(prop.getProperty(“welcome2”, “Test”));//line n1 System.out.println(prop.getProperty(“welcome3”));
What is the result?

1. A. Good day!Testfollowed by an Exception stack trace
2. B. Good day!followed by an Exception stack trace
3. C. Good day!Test null
4. D. A compilation error occurs at line n1.

Correct Answer: C

Given the code fragment:

Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the dbURL, userName, and passWord exists The Employee table has a column ID of type integer and the SQL query matches one record. What is the result?

1. A. Compilation fails at line 14.
2. B. Compilation fails at line 15.
3. C. The code prints the employee ID.
4. D. The code prints Error.

Correct Answer: A

Given:
interface Rideable {Car getCar (String name); } class Car {
private String name; public Car (String name) { this.name = name;
}
}
Which code fragment creates an instance of Car?

1. A. Car auto = Car (“MyCar”): : new;
2. B. Car auto = Car : : new;Car vehicle = auto : : getCar(“MyCar”);
3. C. Rideable rider = Car : : new;Car vehicle = rider.getCar(“MyCar”);
4. D. Car vehicle = Rideable : : new : : getCar(“MyCar”);

Correct Answer: C

Given the Greetings.properties file, containing:

and given:

What is the result?

1. A. Compilation fails.
2. B. GOODBY_MSG
3. C. Hello, everyone!
4. D. Goodbye everyone!
5. E. HELLO_MSG

Correct Answer: A