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Real Time sample code for Encapsulation and Abstraction. where to use abstract and where to use specifies like public private.
2 9595What will happen inside init() in servlet. my interviewer asked servlet lifecycle. i said "once servlet is loaded in to memory init() will be called which performs servlet initialization " . Again interview asked what values will be initialized . what is difference between init() and init(ServletConfig config).
2 13434my method "abc" return array of interface "xyz" and "pqr" is abstract class implements abc and class "jkl" extends pqr My problem 1) when i call abc it retrun array xyz how can i do this hint xyz refer_xyz = new jkl(); but i can't create array. 2)I want to access method of jkl using reference of xyz??
1 4032why business logic written using servlets not in jsp. Jsp used for presentation purpose. serlvet used for coding business logic and controller logic. Reason for using servlets in business logic.
5 13264StringBuilder s = new StringBuilder("Hello Mom");s.append(",I mean,Mother"); Response.Write(s.ToString()); String s = "Hello Mom"; s+ = ",I mean Mom"; Response.Write(s); Which is faster ? which uses the most memory?
HCL,
6 9276
What do you mean by an interface in java?
What is the difference between equals() and == in java?
Write a program to print count of empty strings in java 8?
What is the difference between break and continue statements?
hi actully i hav form columns with origin and destination names .as like as i need to create one more column with name amount. my requirement is when i select origin and destination columns automatically i need to get amount from database.how can i. please tel me with relative code
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Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance
How is declarative handling of exceptions done in struts ?
explain different ways of using thread? : Java thread
What is latest hibernate version?
Is minecraft 1.15 out?
Realized?
Write a program to find the whether a number is an Armstrong number or not?
Explain public static void main(string args[]) in java.
What is an object in java and how is it created?
