Java建立物件的五個方法

1
MyObject object = new MyObject();

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MyObject object = MyObject.class.newInstance();
2
MyObject object = (MyObject) Class.forName("package.MyObject").newInstance();
3
MyObject object = (MyObject) Class.forName("package.MyObject").getDeclaredConstructor().newInstance();

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Constructor constructor = MyObject.class.getConstructor();
2
MyObject object = constructor.newInstance();

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MyObject anotherObject = new MyObject();
2
MyObject object = (MyObject) anotherObject.clone();

1
ObjectInputStream inStream = new ObjectInputStream(anInputStream);
2
MyObject object = (MyObject) inStream.readObject();