Given the following declarations:

StringBuilder buf;
StringBuilder buf2 = new StringBuilder();
String c = new String("test");

Which of the following is not a valid StringBuilder constructor?
a. buf = new StringBuilder();
b. buf = new StringBuilder(buf2, 32);
c. buf = new StringBuilder(32);
d. buf = new StringBuilder(c);


b. buf = new StringBuilder(buf2, 32);

Computer Science & Information Technology

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