Which two scenarios are NOT safe to replace a StringBuffer object with a StringBuilder object?() A.When using versions of Java technology earlier than 5.0.B.When sharing a StringBuffer among multiple threads.C.When using the java.io class StringBufferInputStream.D.When you plan to reuse the StringBuffer to build more than one string.
Which two scenarios are NOT safe to replace a StringBuffer object with a StringBuilder object?()
A.When using versions of Java technology earlier than 5.0.
B.When sharing a StringBuffer among multiple threads.
C.When using the java.io class StringBufferInputStream.
D.When you plan to reuse the StringBuffer to build more than one string.
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