1Z0-808: Java SE 8 Programmer IDemo

Question

Which statement empties the contents of a StringBuilder variable called sb?

A sb. deleteAll ();
B sb. delete (0, sb. size () );
C sb. delete (0, sb. length () );
D sb. removeAll ();

Explanation

StringBuilder.delete(int, int) removes the character range beginning at the inclusive start index and ending before the exclusive end index. Using 0 and sb.length() therefore deletes all characters in the builder.

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StringBuilder (Java SE 25)

1Z0-808: Java SE 8 Programmer IDemo

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Notes

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