单项选择题
Given:
Which regular expression, inserted at line 12, correctly splits test into "Test A", "Test B", and "Test C"?（）
A.String regex=""；
B.String regex=" ."；
C.String regex=".*"；
D.String regex="\\s"；
E.String regex="\\.\\s*"；
F.String regex="\\w[\.]+"；
相关考题
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单项选择题
Given: What is the result when the programmer attempts to compile the code and run it with the command java Converter 12?（）
A.It is true that j==i.
B.It is false that j==i.
C.An exception is thrown at runtime.
D.Compilation fails because of an error in line 13. -
单项选择题
Given that the current directory is empty, and that the user has read and write permissions, and the following: Which statement is true?（）
A.Compilation fails.
B.The file system has a new empty directory named dir.
C.The file system has a new empty directory named newDir.
D.The file system has a directory named dir, containing a file f1.txt.
E.The file system has a directory named newDir, containing a file f1.txt. -
单项选择题
Given: Which code fragment, inserted at line 24, outputs "123abc 123abc"?（）
A.sb1.append("abc"); s1.append("abc");
B.sb1.append("abc"); s1.concat("abc");
C.sb1.concat("abc"); s1.append("abc");
D.sb1.concat("abc"); s1.concat("abc");
E.sb1.append("abc"); s1 = s1.concat("abc");
F.sb1.concat("abc"); s1 = s1.concat("abc");
G.sb1.append("abc"); s1 = s1 + s1.concat("abc");
H.sb1.concat("abc"); s1 = s1 + s1.concat("abc");
