Core Java - Interview Questions and Answers for 'Class.forname' | Search Java Interview Question

Core Java - Interview Questions and Answers for 'Class.forname' - 2 question(s) found - Order By Newest

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Q1. What are different ways of object creation in Java ?

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Ans. Using new operator - new xyzClass()

Using factory methods - xyzFactory.getInstance( )

Using newInstance( ) method - (Class.forName(xyzClass))emp.newInstance( )

By cloning an already available object - (xyzClass)obj1.clone( )

Sample Code for object initialization using clone

Sample Code for object initialization using getInstance

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Q2. Difference between new operator and Class.forName().newInstance() ?

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Ans. new operator is used to statically create an instance of object. newInstance() is used to create an object dynamically ( like if the class name needs to be picked from configuration file ). If you know what class needs to be initialized , new is the optimized way of instantiating Class.

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