I am confused by the following code of a scjp. original code: which of the following will successfully create an instance of Vectort class and add an element? a) Vector v=new Vector(99); v=99; b) Vector v=new Vector(); v.addElement(99); c) Vector v=new Vector(); v.add(99); d) Vector v=new Vector(); v.addElement("99"); The given ans: d does that means only only a String can be add into a Vector?I dont knwo which of the following can be add into a instance of a vector on earth,a byte or int or char or String?
posted 14 years ago
only objects may be added to a Vector instance, i.e. String, primitive wrappers, or whatever but no primitive type !!! HIH
------------------ Valentin Crettaz Sun Certified Programmer for Java 2 Platform