Question
import java.util.*;
public class genericstack {
Stack stk = new Stack ();
public void push(E obj) {
stk.push(obj);
}
public E pop() {
E obj = stk.pop();
return obj;
}
}
class Output {
public static void main(String args[]) {
genericstack gs = new genericstack();
gs.push(36);
System.out.println(gs.pop());
}
}
What is the output of this program?
import java.util.*;
public class genericstack {
Stack stk = new Stack ();
public void push(E obj) {
stk.push(obj);
}
public E pop() {
E obj = stk.pop();
return obj;
}
}
class Output {
public static void main(String args[]) {
genericstack gs = new genericstack();
gs.push(36);
System.out.println(gs.pop());
}
}
Answer: Option D
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genericstack's object gs is defined to contain a string parameter but we are
sending an integer parameter, which results in compilation error.
Output:
$ javac Output.java
$ java Output
Hello
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