who can we create the object of a class? in how many ways we
can create it (max 5)
Answers were Sorted based on User's Feedback
1. Using new keyword
This is the most common way to create an object in java.
MyObject object = new MyObject();
2. Using Class.forName()
If we know the name of the class & if it has a public
default constructor we can create an object in this way.
MyObject object = (MyObject)
Class.forName("subin.rnd.MyObject").newInstance();
3. Using clone()
The clone() can be used to create a copy of an existing object.
MyObject anotherObject = new MyObject();
MyObject object = anotherObject.clone();
4. Using object deserialization
Object deserialization is nothing but creating an object
from its serialized form.
ObjectInputStream inStream = new
ObjectInputStream(anInputStream );
MyObject object = (MyObject) inStream.readObject();
| Is This Answer Correct ? | 4 Yes | 0 No |
What will be the default values of all the elements of an array defined as an instance variable?
Can you have a constructor in abstract class?
Why java is not a pure object oriented language?
How do you sort an array in java?
What is string variable?
What is pass by value?
Is it possible to write JAVA program without including any of the packages,such as "import java.io.*"; bcoz I instantly wrote a code without "import..." statement and runned the program on command Line & it worked. the code is: class Person { String name; int age; Person(String s,int a) { name = s; age = a; } accept() { System.out.println(name+"Hi!!!!!"); System.out.println(age); } } class Demo { public static void main(Strings args[])throws IOException { String name = args[0]; int age = Integer.parseInt(args[1]); Person p = new Person(name,age); p.accept(); } }
What is the purpose of an interface?
printstream class method println() is calling using System class and its static object out .how it is explain any one in detail with example ?
What is exception handling in java?
What is the difference between equals() and == in java?
What are controls and their different types in awt?