Java - Create Immutable Class

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How to Create Immutable Class in Java ?
 To create immutable class we need to follow certain steps,

  • Declare the class as Final
  • Make all fields as Private & Final  
  • Don't Create Setter for any fields
  • Initialize all fields via constructor
  • Perform cloning of objects in the getter methods to return a copy rather than returning the actual object reference.

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