58 Which code, inserted at line 16, will cause a java.lang.ClassCastException? (A) Alpha a = x; (B) Foo f = (Delta)x; (C) Foo f = (Alpha)x; (D) Beta b = (Beta)(Alpha)x;

複選題60 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? (Choose two.) (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 (AB) java com.company.application.MainClass if run from the /apps/com/company/application directory

58 Which code, inserted at line 16, will cause a java.lang.ClassCastException? (A) Alpha a = x; (B) Foo f = (Delta)x; (C) Foo f = (Alpha)x; (D) Beta b = (Beta)(Alpha)x;

其他試題

58
Which code, inserted at line 16, will cause a java.lang.ClassCastException?
(A) Alpha a = x;
(B) Foo f = (Delta)x;
(C) Foo f = (Alpha)x;
(D) Beta b = (Beta)(Alpha)x;