Online Access Free 1z1-811 Practice Test

Given these class definitions:

Which class or classes compile?

• A.only MyClassB, MyClassC, and MyClassD
• B.MyClassA, MyClassB, MyClassC, and MyClassD
• C.only MyClassB
• D.only MyClassB and MyClassD

What does import java.io* mean?

• A.All classes in the io package and the subpackages of io packages, if any, are imported.
• B.All classes whose names start with io are imported.
• C.Only the io class is imported.
• D.All classes in the io package are imported.

Given:

What is the result?

• A.The program compiles and nothing is printed.
• B.Iteration plus an increasing number is printed 99 times.
• C.Iteration plus an increasing number is printed 100 times.
• D.An error occurs during compilation.

Given the code fragment:

Which code fragment can be inserted at line n1 to enable the code to print 0.0?

• A.Ball b = null;
  b.weight = 0.0;
• B.Ball b = new Ball(0.0);
• C.Ball b = new Ball();
• D.Ball.weight = 0.0;

Given the code fragment:

What is the result?

• A.2
• B.3
• C.The program executes an infinite number of times.
• D.4