Every class extends object but why it is not possible for
every object to invoke clone() method. ideally protected
methods should be accessible from sub classes. isn't it?
Answer Posted / aslam
Since the method is protected we can access clone method
only within the package or from subclasses outside the
package.
for ex:
class A{
public static void main(String arg[]){
new A().clone();
/* This is legal since class A is a subclass of Object and
we r accessing within the subclass*/
}
}
class B{
public static void main(String arg[]){
new A().clone();
/* Illegal since we r accessing it from outside object */
}
}
| Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
Can a class extend more than one class?
What is the escape character in java?
how to write a program for sending mails between client and server
Explain why wait(), notify() and notifyall() methods are in object class rather than in the reading class?
Why java is secure? Explain.
How to provide security in java
What do you understand by garbage collection in Java? Can it be forced to run?
Explain methods specific to list interface?
Why there is no call by reference in java?
How does callback work in java?
Why does java does not support multiple inheritance? Explain
What do you mean by checked exceptions?
Explain about the interpreter in java?
For ease of programming you can consider the maze as a 2D array with colors represented by below integer and characters (in capital letters). • B - Black • W -White • G- Green • R- Red R B W B W W W W W W B W B B W W W W W W W B W B W W W B W W W W B B W W W B W W W B W W B B B B W B W B W W B W W W B W W W B B B W W B W W W B W W B W B W W W B W B W W W W B B W W W W B W W W W W G Shortest Route Problem: • Solution that finds the shortest Route between Red and Green White will have 1 Weight. Red and Green carry no weights. Shortest path is the path with less weight when you add up the weights in the path.
What is a substitution variable?