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 are default methods ?
What are the types of strings?
What are some alternatives to inheritance?
State one difference between a template class and class template.
What is the use of singleton?
What is a static method in java?
What is difference between arraylist and list in java?
Difference between vector and arraylist.
What do you understand by an io stream?
What is the difference between procedural and object-oriented programs?
Explain different data types in Java.
Why we need to serialize the object
11 Answers CTS, Geometric Software,