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 thefindSalmon（） 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 B

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單項選擇題

Given：

When line 14 is reached， how many objects are eligible for the garbage collector？（）

A.0
B.1
C.2
D.3
E.4

單項選擇題

Given：

What is the result？（）

A.Compilation fails.
B.An exception is thrown at runtime.
C.doStuff x = 6 main x = 6
D.doStuff x = 5 main x = 5
E.doStuff x = 5 main x = 6

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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 thefindSalmon（） method， which change allows this code to compile？（）

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Given： When line 14 is reached， how many objects are eligible for the garbage collector？（）

Given： What is the result？（）

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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 thefindSalmon（） method， which change allows this code to compile？（）

Given：

When line 14 is reached， how many objects are eligible for the garbage collector？（）

Given：

What is the result？（）