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  

---

how will you do destructive read and non destructive read in data queue.....

0 Answers   CTS,

---

MOV.CB 007H,ADCON1 MOVE.CT 001H,_OPTION_REG_7 MOV.CB 007H,CMCON

0 Answers  

---

How same session variable can be used in both Asp and Asp.net?

1 Answers   Wipro,

---

Is buffer size and file block size is similar? If similar,at which case it will be same size?

0 Answers  

---

---

what is the difference between rename and label

0 Answers   Satyam,

---

Why we use NEW operator when we create Object,While in C++ we donot ?

1 Answers  

---

Who is the Best SAS/Clinical Trainer in Hyderabad

1 Answers  

---

what is the difference between a looping statement and a decision statement

3 Answers  

---

we create a pf with 3 fields.2 is defined as keyfields.we lock it with alcobj command.how we find out whether the file is locked or not?is it dspfd??/

0 Answers   CTS,

---

In loading programs into memory, what is the difference between load-time dynamic linking and run-time dynamic linking?

0 Answers  

---

In OB52 , How to define two open posting period, Like only 5 and 8 posting should be open.. should not open 6 and 7..period..

0 Answers  

---