Creating an instance of a class from a class name in Java

In Java, you create an instance of a class by its class name, which must be the default constructor and cannot write its own method of construction.

Method 1:

Userdao Userdao=null;   Properties Prop=new properties ();   InputStream Instream=daofactory.class.getclassloader (). getResourceAsStream ("daoconfig.properties");   Prop.load (instream);     String userdaoclass=prop.getproperty ("Userdaoclass");   Class Clazz=class.forname (Userdaoclass); userdao= (Userdao) clazz.newinstance ();

Method 2:

Userdao Userdao=null;   Properties Prop=new properties ();   InputStream Instream=daofactory.class.getclassloader (). getResourceAsStream ("daoconfig.properties");   Prop.load (instream); String userdaoclass=prop.getproperty ("Userdaoclass");//Gets the class name userdao= (Userdao) class.forname (Userdaoclass) from the configuration file. Newinstance ();

Creating an instance of a class from a class name in Java