In java, “this” keyword is used toSelect one:Pass as an argument to a method.Refer current class object.Return current class object.All are correct.

Break Down the Problem

1. Identify the purpose of the this keyword in Java.
2. Analyze each option provided and check its validity.

Relevant Concepts

1. The this keyword in Java is used to refer to the current object within an instance method or a constructor.
2. It can also be used to pass the current object to another method or to return the current object from a method.

Analysis and Detail

1. Pass as an argument to a method: this can be passed as an argument to methods, allowing methods to receive a reference to the current object.

2. Refer current class object: this is commonly used to refer to the current object explicitly within methods or constructors.

3. Return current class object: this can be returned from methods to return the current instance of the class.

All three statements are valid usages of the this keyword.

Verify and Summarize

Each option regarding the usage of this in Java is correct. Therefore, the conclusion is that all provided options about the this keyword are applicable.

Final Answer

All are correct.