Which of the following is not required while you are developing a bean?

Which design pattern is used to decouple presentation from core data access functionality in JSP?

Choose the right syntax for a preparedStatement using ? as a placeholder for values namely CUSTOMER_ID,PRICE to be substituted while inserting values in the table ORDER: PreparedStatement ps=con.prepareStatement('INSERT INTO ORDER (CUSTOMER_ID ,PRICE) VALUES(?,?)');

Which classes/set of classes can illustrate polymorphism in the given code? abstract class student { public : int marks; calc_grade(); } class topper:public student { public : calc_grade() { return 10; } }; class average:public student { public : calc_grade() { return 20; } }; class failed{ int marks;};

When a server wants to make an object available for URL lookups, it must bind that object instance to a string representing the:

Output of the given program? import java.io.*; class streams { public static void main(String[] args) { try { FileOutputStream fos = new FileOutputStream('serial'); ObjectOutputStream oos = new ObjectOutputStream(fos); oos.writeFloat(3.5); oos.flush(); oos.close(); } catch(Exception e) { System.out.println('Serialization' + e); System.exit(0); } try { FileInputStream fis = new FileInputStream('serial'); ObjectInputStream ois = new ObjectInputStream(fis); ois.close(); System.out.println(ois.available()); } catch (Exception e) { System.out.print('deserialization'); System.exit(0); } } } }

Predefined types such as int, double, and char are ____ types.

One or more objects may be created from a(n)________.

Java uses ________ to reference the current object.

Java requires a ________ call for every object that's created.

In java, ________ must be declared before they can be used.