What is the meaning of "this" in Java?

In Java, the this keyword refers to the current object. It is used to refer to the instance variables and methods of the current object from within the object's own methods.

Here is an example of how this is used in Java:

public class Person {
    private String name;
    private int age;

    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getName() {
        return this.name;
    }

    public int getAge() {
        return this.age;
    }
}

In this example, the this keyword is used to refer to the instance variables name and age and the instance methods setName, setAge, getName, and getAge of the Person object.

The this keyword is also used to pass the current object as an argument to a method or constructor. For example:

public class Person {
    // ...

    public void printPerson() {
        System.out.println(this);
    }

    public String toString() {
        return "Person[name=" + name + ",age=" + age + "]";
    }
}

In this example, the printPerson method uses the this keyword to pass the current Person object to the toString method, which returns a string representation of the object.

I hope this helps. Let me know if you have any questions.