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  1. What will be the output of the program? 

    String d = "bookkeeper"; d.substring(1,7); d = "w" + d; d.append("woo");  /* Line 4 */ System.out.println(d);

    2. A.
    wookkeewoo
    B.
    wbookkeeper
    C.
    wbookkeewoo
    D.
    Compilation fails.

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    Workspace

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    Answer : Option D

    Explanation :

    In line 4 the code calls a StringBuffer method, append() on a String object.

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