Explain polymorphism. Provide an example.
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4.Write a program to get the string in array and print that? or Without using loop print the array.
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2. What do you mean by DHCP?
what is the main usage of an abstract keyword?please follow the program class A { void display() { System.out.println("hai"); } void print() { } } class B extends A { void print() { System.out.println("Hello"); } } In this program i was gives the implementation of print() according to my requirements in subclass.And there is no definition in superclass then why we can use abstract keyword before a method that i want to gives definition in other classes,is any mistakes in the above usage of method?
I m Abdullah Ansari compleated MCA from Jamia Hamdard,i have appeared the test of IBM on 2 august at oxford college of engineering Bangalore.waiting for hr round.. This is the first round for IBM.02/08/08 Paper consists of 4 sections 15 questions from matrices(time very less but no negative marking). 25 questions from series completion section (this section is very easy but negative marking) 15 questions from aptitude(little bit tough time limit 15 minute negative marking) 4th section is from computer science (c,c++,operating system,digital electronics ,basic question..) result came at 3 o'clock.i was selected... In interview they asked questions like 1 they asked about final yr project.. 2 what are dynamic and static memory location? 3 linked list and array difference between them. 4 what is function ? what is difference betwen function and inline function? 5 about structure 6 about binary tree, traversal, call by value. 7 storage class and many more basic questions..
I've an application where i need to give access to all the features only to admin and only few features to normal users. Say Menu...i dont want all my menu items to be accessible to all the users only the admin people can see few all the features where as normal users can have access to limited menu items...how can i achieve this. Please note that my menu is not a database driven menu.
why not instantiating servet using new operator?
what are the 3 forms of a prolog term
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10.Define filters,binary to hexadecimal,hexadecimal to decimal?
While joining files if only two files are mentioned with jfile keyword, do we required to use join keyword????
what is difference between java and c#