单项选择题X 纠错
A.Foo{public int bar(){return 1;}}
B.new Foo{public int bar(){return 1;}}
C.new Foo(){public int bar(){return 1;}}
D.new class Foo{public int bar(){return 1;}}
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多项选择题
A.A
B.B
C.C
D.D
单项选择题
A.12,4
B.The code runs with no output.
C.An exception is thrown at runtime.
D.Compilation fails because of an error in line 21.
E.Compilation fails because of an error in line 22.
F.Compilation fails because of an error in line 31.
单项选择题
A.0
B.1
C.2
D.3
E.4
F.6
单项选择题
Which code should be inserted at line 1 of Demo.java to compile and run Demo toprint "pizzapizza"?()
A.import utils.*;
B.static import utils.*;
C.import utils.Repetition.*;
D.static import utils.Repetition.*;
E.import utils.Repetition.twice();
F.import static utils.Repetition.twice;
G.static import utils.Repetition.twice;
单项选择题
A.test
B.null
C.An exception is thrown at runtime.
D.Compilation fails because of an error in line 1.
E.Compilation fails because of an error in line 4.
F.Compilation fails because of an error in line 5.
单项选择题
A.Direction d = NORTH;
B.Nav.Direction d = NORTH;
C.Direction d = Direction.NORTH;
D.Nav.Direction d = Nav.Direction.NORTH;
单项选择题
A.java Commander
B.java com.sun.sjcp.Commander
C.java com/sun/sjcp/Commander
D.java -cp com.sun.sjcp Commander
E.java -cp com/sun/sjcp Commander
单项选择题
A.put Poker.jar in directory /stuff/java,and set the CLASSPATH to include /stuff/java
B.put Poker.jar in directory /stuff/java,and set the CLASSPATH to include /stuff/java/*.jar
C.Put Poker.jar in directory /stuff/java,and set the CLASSPATH to include /stuff/java/Poker.jar
D.put Poker.jar in directory /stuff/java/games/cards,and set the CLASSPATH to include /stuff/java
E.put Poker.jar in directory /stuff/java/games/cards,and set the CLASSPATH to include /stuff/java/*.jar
F.put Poker.jar in directory /stuff/java/games/cards,and set the CLASSPATH to include /stuff/java/Poker.jar
单项选择题
A.s=14
B.s=16
C.s=10
D.Compilation fails.
E.An exception is thrown at runtime.
多项选择题
A.insert a call to this() in the Car constructor
B.insert a call to this() in the MeGo constructor
C.insert a call to super() in the MeGo constructor
D.insert a call to super(vin) in the MeGo constructor
E.change the wheelCount variable in Car to protected
F.change line 3 in the MeGo class to super.wheelCount=3