Latest Answer: Static block always executed immaterial of any thing so you can apply it for keep tracking of user visits.Static methods are always executed only by calling it through class name ...
Latest Answer: We can use Hashtable to store different types of data in a single arrayHashtable hash = new Hashtable();hash.put("INT_OBJ",new Integer("1"));hash.put("STR_OBJ",new String("A")); hash.put("BOL_OBJ",new ...
Public class test{ public void hello() { System.out.println("Helllo"); }}public class test1 extends test{ public void say(){ super.hello(); hello();}public void main(String arg[]){ test1 t = new test1(); t.say();}}In the above code what will be difference of super.hello(); and hello();. What is use of super instead of calling directly method name.
Class A { void add(); } class B { void add();}class Ex {public static void main(string args[]) {A a=new B();B b=new A();a.add();b.add();}What is the result;
Which of the function returns a reference to an object provided by an ActiveX component. a) createobject b) getobjectname c) createobjectx d) getobject
Latest Answer: it will load the driver jdbd odbc ...
choice:a)compilation errorb)runtime errror Or what is the result?
Latest Answer: it will result in a compilation error because first thing is that you have not written method body ,else if you don't want to write method body then declare it abstract and terminate it using semi colon. ...
Latest Answer: C++ is also an OOP Language!Java syntax is C++ minus pointers, templates, multiple inheritance, operator overloading ....Maybe java enforces OO programming in a more strict manner than C++, whereas C++ is more flexible and has to be used more sensibly.As ...
Latest Answer: The deafult size of the vector is 10 but the deafult size of the Arraylist is 0 ...
Latest Answer: /* This only adds & removes the elts from an arraylist */class myArrayListSecond{ private static int maxsize; private static Object data[]; private static int index; public myArrayListSecond() { maxsize = 5; data ...
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