創建對象的

Question

可能重複：
is there any other way of creating an object without using 「new」 keyword in java

多少種方法都沒有在Java中創建一個對象？

Answer 1

//Using reflection 
Class classObj Class.forName("Foo"); 
Foo obj1 (Foo)classObj.newInstance(); 

//new operator 
Foo obj2 new Foo(); 

//cloning 
Foo obj3 (TestObjectCreation)obj1.clone(); 

//deserialization 
ByteArrayOutputStream baos new ByteArrayOutputStream(); 
ObjectOutputStream oos new ObjectOutputStream(baos); 
oos.writeObject(obj1); 
ByteArrayInputStream bais new ByteArrayInputStream(baos.toByteArray()); 
ObjectInputStream ois new ObjectInputStream(bais); 
Foo obj4 (Foo)ois.readObject(); 
obj4.method1();