What does newInstance() method does? Can we create an instance like using new keyword?

[Vishal Srivastav]

Hi friends,

What is the use of

 newInstance() 

method in the class

 java.lang.Class 

? Can we create a new instance like we do using

 new 

keyword? Please help friends and reply as soon as possible.

Thank you all.

[Henry Wong]

How do you use the new keyword, if you don't know what you will be instantiating at compile time?

Henry

[Campbell Ritchie]

Find the file called src.zip in your Java installation folder, unzip it, find the Class file (java-->lang-->Class.java), and you can read it for yourself.

[Mark Barrett]

The javadoc for the Class class explains :java.lang.Class

It basically returns a new instance of the class that the Class object represents.

For example:

Class<Object> objClass = Object.class;
Object objInstance = objClass.newInstance();

is the same as

Object objInstance = new Object();

Although you wouldn't use it as a replacement for the new operator. A popular use is in dynamically instantiating a class when the type of that class is not known until runtime.