Given the code fragment:

Which can replace line 11?

• A.UnaryOperator<Interger >uo = (int x) -> x * 3;
• B.UnaryOperator<Interger >uo = var x -> { return x 3 ; };
• C.UnaryOperator<Interger >uo = x -> { return x * 3; };
• D.UnaryOperator<Interger > uo = (var x ) -> (x * 3);

Comment: *

Name: *

Email: *

Verification: *

Given:

What prevents this code from compiling?

• A.The calculateSurfaceAreamethod within Cylinder must be declared default.
• B.Cylinderis not properly calling the Rectangle and Ellipseinterfaces' calculateSurfaceArea methods.
• C.The calculateSurfaceAreamethod within Rectangle and Ellipserequires a publicaccess modifier.
• D.Cylinderrequires an implementation of calculateSurfaceAreawith two parameters.

Comment: *

Name: *

Email: *

Verification: *

Why would you choose to use a peekoperation instead of a forEachoperation on a Stream?

• A.to process the current item and return void
• B.to remove an item from the end of the stream
• C.to process the current item and return a stream
• D.to remove an item from the beginning of the stream

Comment: *

Name: *

Email: *

Verification: *

Given:

What is the result?

• A.The compilation fails at line 9.
• B.The compilation fails at line 2.
• C.Hello World
• D.The compilation fails at line 8.

Correct Answer: C

Comment: *

Name: *

Email: *

Verification: *

Which is a proper JDBC URL?

• A.http://localhost.mysql.com:3306/database
• B.http://localhost
  mysql.jdbc:3306/database
• C.jdbc:mysql://localhost:3306/database
• D.jdbe.mysql.com://localhost:3306/database

Comment: *

Name: *

Email: *

Verification: *