What does this method do in Java?

this keyword in Java is a reference variable that refers to the current object of a method or a constructor. The main purpose of using this keyword in Java is to remove the confusion between class attributes and parameters that have same names.

What is the difference between this and this () in Java?

this keyword is used to refer to the current object, i.e. through which the method is called….Difference Between this and this() in Java.

this	this()
It is used to differentiate between the local variable and the instance variable in the method.	It is used to refer to the constructor belonging to the same class.

What does this () mean in constructor chaining concept?

Constructor chaining is the process of calling one constructor from another constructor with respect to current object. Within same class: It can be done using this() keyword for constructors in same class. When you create a object so constructor will automatically call according to which object is call.

What does this method do?

this is a keyword in Java. Which can be used inside method or constructor of class. It(this) works as a reference to a current object whose method or constructor is being invoked. this keyword can be used to refer any member of current object from within an instance method or a constructor.

What is difference between this () and super ()?

Difference between super() and this() in java. super() as well as this() both are used to make constructor calls. super() is used to call Base class’s constructor(i.e, Parent’s class) while this() is used to call current class’s constructor.

What does the this keyword do exactly in Java?

this Keyword in Java is a reference variable that refers to the current object.

One of the use of this keyword in Java is to refer current class instance variable

It can be used to invoke or initiate current class constructor

It can be passed as an argument in the method call

this pointer in Java can be passed as argument in the constructor call

Why do we use new keyword in Java?

Syntax

Points to remember. It is used to create the object. It allocates the memory at runtime. All objects occupy memory in the heap area.

Examples of Java new Keyword. Let’s see a simple example to create an object using new keyword and invoking the method using the corresponding object reference.

What is the purpose of the DEFAULT keyword in Java?

default: Java default keyword is used to specify the default block of code in a switch statement. do: Java do keyword is used in control statement to declare a loop. It can iterate a part of the program several times.

What is the meaning of “this” in Java?