If your program needs to make a lot of changes to one or more string,you might consider using objects of this class: (如果你的程序需要进行一个或多个字符串的修改,你需要考虑下列哪个类的对象:)
A. Character
B. String
C. StringBuilder
D. All of the above
Look at the following statement: (请看下列语句:)StringBuilder str = new StringBuilder(25);What will the StringBuilder constructor do? (StringBuilder构造函数将做什么?)
A. give the object, str, 25 bytes of storage and store spaces in them (给对象str,25字节的存储及其存储空间)
B. give the object, str, 25 bytes of storage and not store anything in them (给对象str,25字节的存储并不在其中存储任何东西)
C. give the object, str, 25 or more bytes of storage and store spaces in them(给对象str,25或更多字节的存储及其存储空间)
D. give the object, str, 0 bytes of storage (给对象str,0字节的存储)