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?

0 Answers  

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If i have a dataset queried from Sql and I would like to insert the dataset into a specific node in an xml document how do I do this

0 Answers   SGT,

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Even if all fields are initialized also in a program, I am getting COBOL/400 decimal data error .why is it coming?

1 Answers   Freelance,

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write a query that returns one row for each department and the number of employees in that department. Given two tables EMPLOYEE and DEPARTMENT, where there can be multiple employees per department.

0 Answers   IBM,

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what is web configuration file

0 Answers   HCL,

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Write 5 differences between Memory Reference Instruction and Register Reference Instruction.

1 Answers   TCS, TJM,

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what is difference between c and C#

12 Answers   MCN Solutions,

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why you have to became a software developer?

2 Answers  

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I am looking for selenium RC online Training in chennai. can any one tell me the best institute

0 Answers  

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What is the meaning of client-server application. The purpose of Client-Server Application. with description.

0 Answers  

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Write a program to implement BFS/ DFS routine in a connected graph

1 Answers  

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What sysoption determines where the macro facility searches a specific catalog for complied macro?

0 Answers   GE,

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