Answer / dasharath

basically we use marker interface to make special type of object.
If we take an example of a book shop where we find different type of books, in that suppose you want to display all the books which are related to Java then you can use marker interface there.
You can create a Interface say JavaBooks which wont be having any methods(A blank interface), then all the classes(say for example I say MyJavaBook) implements this blank Interface.
And then while displaying all the books related to Java you can chk using instancOf whether the book is of type JavaBooks(Marker Interface which we created previously).

How to create and run runnable jar file of a Java Project.

4 Answers   HCL, TCS, Tech Mahindra, US Consulate, Wipro,

---

write a program in java to solve a system of n-variabled simultaneous equations using the guassian elimination method. let the maximum possible value of n be 100. run the program using hypothetical values for a set of 10- variables simultaneous equations. print out the program, the input equation and the results generated by the program.

0 Answers   TCS,

---

how to create a (*)pyramid using java codes???

5 Answers   Infosys,

---

In java, why do we set thread priority, when we know that there is no guarantee by which a thread should be execute?

0 Answers   Google, Microsoft,

---

is public static void main() work in java?is "String arg[]" needed as argument?

4 Answers   Tech Mahindra,

---

A game that has five levels of play has the score for each level stored in an array. You are to write a program that goes through that array and finds: a) the minimum score, and the level at which it occurred b) the maximum score, and the level at which it occurred c)the average score for all five levels The score data you must use for this program are as follows: Game Level Score 1 450 2 316 3 148 Stack implementations is mandatory.

0 Answers  

---

Design a program using one-dimensional array that determines the highest value among the eight input values from a user. Display the difference of each value from the highest to the lowest.

1 Answers   RoboSoft,

---

what are the other loops except for for,while,do while and until?

0 Answers   Aricent,

---

Write a program to convert a decimal number to binary form?

1 Answers   Oracle,

---

Is there any static classes are in java give some examples

0 Answers  

---

Program to print map of India in java.

2 Answers  

---

I am trying to pass the string firstName from a Servlet called SampleServet. I am running this on eclipse and it tells me that "the value for annotation attribute must be a constant expression. I don't understand why it is giving me this error. @PersonAnnotation(name = SampleServlet.firstName) public class AnnotationClass{

0 Answers  

---