Home Java javaTutorial Which object does this point to in java?

Which object does this point to in java?

Apr 29, 2024 am 02:06 AM

The this keyword in Java points to the object whose method is called. It is used to refer to the current object in the following situations: Instance method: Points to the object on which the method is being called. Constructor: Points to the object being created. Static methods: Not available because static methods do not belong to any specific object.

Which object does this point to in java?

Which object does the this keyword in Java point to?

This keyword is used in Java to refer to the current object, which points to the object whose method is called.

Detailed explanation:

  • Instance method: When this is used in an instance method, it points to the object on which the method is being called. . For example:
class Person {
    private String name;

    public String getName() {
        return this.name;
    }
}
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In the getName() method, this refers to the Person object that is calling the method.

  • Constructor method: In the constructor method, this points to the object being created. It is typically used to initialize fields of an object. For example:
class Person {
    private String name;

    public Person(String name) {
        this.name = name;
    }
}
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In the Person constructor, this refers to the Person object being created, and the parameter name is assigned to the name field of the object.

  • Static methods: Static methods do not belong to any specific object, so they cannot use the this keyword.

Summary:

The this keyword in Java always points to the object whose method is called. It is used in instance methods and constructors to refer to the current object and is not available in static methods.

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