What are the 6 ways to use this keyword?

Answer 1

"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