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Which two scenarios are NOT safe to replace a StringBuffer object with a StringBuilder object? (Choose two.) A. When using versions of Java technology earlier

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Which two scenarios are NOT safe to replace a StringBuffer object with a StringBuilder object? (Choose two.) 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 StringBufferlnputStream D. When you plan to reuse the StringBuffer to build more than one string

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