在Java中创建对象的方法有哪些不同?

new

 MyObject object = new MyObject();

Class.forName()

MyObject object = (MyObject) Class.forName("subin.rnd.MyObject").newInstance();

clone()

MyObject anotherObject = new MyObject();
MyObject object = (MyObject) anotherObject.clone();

object deserialization

ObjectInputStream inStream = new ObjectInputStream(anInputStream );
MyObject object = (MyObject) inStream.readObject();

here

• Class.newInstance
• Constructor.newInstance
• Object.clone
• new
• String
• ...
• throw null; "".toCharArray()[0]

String.class.newInstance()

new

Employee emp1 = new Employee();

newInstance() Class

Employee emp2 = (Employee) Class.forName("org.programming.mitra.exercises.Employee")
                                .newInstance();

Employee emp2 = Employee.class.newInstance();

Constructor

Constructor<Employee> constructor = Employee.class.getConstructor();
Employee emp3 = constructor.newInstance();

clone()

Employee emp4 = (Employee) emp3.clone();

ObjectInputStream in = new ObjectInputStream(new FileInputStream("data.obj"));
Employee emp5 = (Employee) in.readObject();

Different ways to create objects in Java with Example

Cloning deserialization

 Object myObj = Class.forName("your.cClass").newInstance();

is there any other way of creating an object without using "new" keyword in java

 A[] array = new A[len];

 A[] array = new A[] { value0, value1, value2 };

 A[] array = (A[]) Array.newInstance(A.class, len);

• anewarray multianewarray newarray new

someClass.newInstance();

SomeClass anObj = SomeClass.class.newInstance();

• new
• clazz.newInstance() clazz.getConstructor(..).newInstance(..)

Foo fooClone = fooOriginal.clone (); 

MyObject object = new MyObject();//normal way

ClassName ObgRef=ClassName.FactoryMethod();

RunTime rt=Runtime.getRunTime();//Static Factory Method

clone()

MyObjectName anotherObject = new MyObjectName();
MyObjectName object = anotherObjectName.clone();//cloning Object

MyObjectName object = (MyObjectNmae) Class.forName("PackageName.ClassName").newInstance();

String st=(String)Class.forName("java.lang.String").newInstance();

ObjectInputStreamName inStream = new ObjectInputStreamName(anInputStream );
MyObjectName object = (MyObjectNmae) inStream.readObject();

Employee object = new Employee();

Employee object2 = (Employee) Class.forName(NewEmployee).newInstance();

Employee secondObject = new Employee();
Employee object3 = (Employee) secondObject.clone();

Object object4 = Employee.class.getClassLoader().loadClass(NewEmployee).newInstance();

// Create Object5
// create a new file with an ObjectOutputStream
FileOutputStream out = new FileOutputStream("");
ObjectOutputStream oout = new ObjectOutputStream(out);

// write something in the file
oout.writeObject(object3);
oout.flush();

// create an ObjectInputStream for the file we created before
ObjectInputStream ois = new ObjectInputStream(new FileInputStream("crunchify.txt"));
Employee object5 = (Employee) ois.readObject();

String s ="Hello";