Quiz on this Keyword in Java

What does the this keyword refer to in Java?

In which context is this keyword invalid?

What is the output of the following?

class Demo {
int x;
Demo(int x) {
this.x = x;
}
}

Which of the following is NOT a valid use of `this` keyword?

Can `this()` be used to call another constructor in the same class?

Which rule applies when using `this()` in a constructor?

What does the `this` keyword resolve in this example?

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

Can you pass `this` as an argument to a method?

What will happen if `this()` is not the first statement in a constructor?

Which method uses `this` to return the current object?

In which of the following scenarios is using `this` NOT required?

Which of the following can `this` NOT refer to?

Can `this` keyword be used in a static block?

Why is `this` used in setter methods commonly?

What is the purpose of returning `this` from a method?