What are the advantages and disadvantages of using the toString method in Java?

The toString() method in Java is used to obtain a string representation of an object.

Advantages:

• Allows easy retrieval of a readable description of the object, which is convenient for debugging and logging.
• Can be overridden in your classes to display useful information.
• Is used automatically when concatenating strings with objects.

Disadvantages:

• If not overridden, it returns a less informative result (e.g., class name and hash code).
• Overriding can be time-consuming if the object is complex.
• It is not always safe to output all object information (e.g., confidential data).

Example of overriding:

@Override
public String toString() {
    return "User{name='" + name + "', age=" + age + "}";
}