多項選擇題

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
F.java com.company.application.MainClass if run from the /apps/com/company/application directory

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單項選擇題

Given two files, GrizzlyBear.java and Salmon.java:

If both classes are in the correct directories for their packages, and the Mammal class correctly defines the findSalmon() method, which change allows this code to compile?（）

A.add import animals.mammals.*; at line 2 in Salmon.java
B.add import animals.fish.*; at line 2 in GrizzlyBear.java
C.add import animals.fish.Salmon.*; at line 2 in GrizzlyBear.java
D.add import animals.mammals.GrizzlyBear.*; at line 2 in Salmon.java

多項選擇題

Given:

Which three are valid?（）

A.p0 = p1;
B.p1 = p2;
C.p2 = p4;
D.p2 = (ClassC)p1;
E.p1 = (ClassB)p3;
F.p2 = (ClassC)p4;

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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?（）

你可能感興趣的試題

Given two files, GrizzlyBear.java and Salmon.java: If both classes are in the correct directories for their packages, and the Mammal class correctly defines the findSalmon() method, which change allows this code to compile?（）

Given: Which three are valid?（）

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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 two files, GrizzlyBear.java and Salmon.java:

If both classes are in the correct directories for their packages, and the Mammal class correctly defines the findSalmon() method, which change allows this code to compile?（）

Given:

Which three are valid?（）