單項(xiàng)選擇題

Given：

Which statement is true？（）

A.Compilation fails.
B.An exception is thrown at runtime.
C.Synchronizing the run（） method would make the class thread-safe.
D.The data in variable "x" are protected from concurrent access problems.
E.Declaring the doThings（） method as static would make the class thread-safe.

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多項(xiàng)選擇題

Given

Which two statements are true？（）

A.Foo.beta（） is a valid invocation of beta（）.
B.Foo.alpha（） is a valid invocation of alpha（）.
C.Method beta（） can directly call method alpha（）.
D.Method alpha（） can directly call method beta（）.

多項(xiàng)選擇題

Given：

And MainClass exists in the /apps/com/company/application directory.
Assume the CLASSPATH environment variable is set to "." （current directory）.
Which two java commands entered at the command line will run MainClass？（）

A.java MainClass if run from the /apps directory
B.java com.company.application.MainClass if run from the /apps directory
C.java -classpath /apps com.company.application.MainClass if run from any directory
D.java -classpath . MainClass if run from the /apps/com/company/application directory
E.java -classpath /apps/com/company/application：. MainClass if run from the /apps directory

Given： Which statement is true？（）

你可能感興趣的試題

Given Which two statements are true？（）

Given： And MainClass exists in the /apps/com/company/application directory. Assume the CLASSPATH environment variable is set to "." （current directory）. Which two java commands entered at the command line will run MainClass？（）

Given：

Which statement is true？（）

Given

Which two statements are true？（）

Given：

And MainClass exists in the /apps/com/company/application directory.
Assume the CLASSPATH environment variable is set to "." （current directory）.
Which two java commands entered at the command line will run MainClass？（）