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"Java This keyword" is a reference to the current object, it is very helpful when you need to refer an instance of a particular Object from its available methods or using it's constructor, also "this" keyword helps us to avoid naming conflicts.

The following are different ways to use java this keyword

  • 1) Using with instance variable
  • 2) Using with Constructor
  • 3) Pass / Return current instance
  • Using with instance variable

    Using this keyword inside a method or constructor it will use instance variable instead of local variable, in the absence of this keyword it will use local variable

  • Using with instance variable

    Using this keyword inside a method or constructor it will use instance variable instead of local variable, in the absence of this keyword it will use local variable

  • Using with Constructor

    Using this keyword inside constructor like following

    this("Sony", 20);

    it will call the constructor having same parameter

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