How is object created in java?
Answers were Sorted based on User's Feedback
Answer / ishaque
There are many ways to create an object in java. They are:
By new keyword
By newInstance() method
By clone() method
By factory method etc.
| Is This Answer Correct ? | 15 Yes | 1 No |
Answer / akshay
Object is created following ways
1.Using NEW operator
2.Class.newinstance()
| Is This Answer Correct ? | 7 Yes | 1 No |
Object is created in four different ways
1. Using new operator
2. Class.forName(..)
3. Cloning
4. Serializing and De-serializing
| Is This Answer Correct ? | 6 Yes | 2 No |
There are FIVE different ways to create objects in Java:
1. Using `new` keyword:
This is the most common way to create an object in Java. Almost 99% of objects are created in this way.
MyObject object = new MyObject();//normal way
2. By Using Factory Method:
ClassName ObgRef=ClassName.FactoryMethod();
Example:
RunTime rt=Runtime.getRunTime();//Static Factory Method
3. By Using Cloning Concept:
By using clone(), the clone() can be used to create a copy of an existing object.
MyObjectName anotherObject = new MyObjectName();
MyObjectName object = anotherObjectName.clone();//cloning Object
4. 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.
MyObjectName object = (MyObjectNmae) Class.forName("PackageName.ClassName").newInstance();
Example:
String st=(String)Class.forName("java.lang.String").newInstance();
5. Using object deserialization:
Object deserialization is nothing but creating an object from its serialized form.
ObjectInputStreamName inStream = new ObjectInputStreamName(anInputStream );
MyObjectName object = (MyObjectNmae) inStream.readObject();
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / anu sownthariya rajakumari,isw
1.new
2.newinstance()
3.clone()
4.class.forName()
5.deserialization
| Is This Answer Correct ? | 0 Yes | 0 No |
What will be the output of round(3.7) and ceil(3.7)?
Differentiate between stringbuffer and stringbuilder in java.
What is http client in java?
How do you override a method?
Explain illegalmonitorstateexception and when it will be thrown?
Is there any difference between synchronized methods and synchronized statements?
How to make a write-only class in java?
What is methods and methodology?
To obtain design information about an object, which class in used?
What do you understand by the bean persistent property?
What is the difference between serialization and deserialization?
Give differences between Quicksort &Mergesort. When should these sorts be used andwhat is their running time in java?