A.Point p = Line.getPoint（）；
B.Line.Point p = Line.getPoint（）；
C.Point p = （new Line（））.getPoint（）；
D.Line.Point p = （new Line（））.getPoint（）；

A.Value is： 8
B.Compilation fails.
C.Value is： 12
D.Value is： -12

A.p.setWeight（420）；
B.p.changePayload（420）；
C.p = new Payload（420）；
D.Payload.setWeight（420）；
E.p = Payload.setWeight（420）；

A.1
B.2
C.12
D.Compilation fails.
E.No output is produced.

A.The file will compile without error.
B.Compilation fails. Only line 7 contains an error.
C.Compilation fails. Only line 12 contains an error.
D.Compilation fails. Only line 13 contains an error.
E.Compilation fails. Only lines 7 and 12 contain errors.

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

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

A.s 14
B.s 16
C.s 10
D.Compilation fails.

A.Compilation fails.
B.An exception is thrown at runtime.
C.doStuff x = 6 main x = 6
D.doStuff x = 6 main x = 7
E.doStuff x = 7 main x = 6

A.1
B.2
C.12
D.Compilation fails.
E.No output is produced.
F.An exception is thrown at runtime.

A.Line 5
B.Line 6
C.Line 7
D.Line 8
E.Line 9