Menu
If Object is the mother of all classes in the hierarchy, how can he implement a method returning an object of a child class (e.g toString returns a String object)?
806
toString() method returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read.
We can convert Object to String in java using toString() method of Object class or String. valueOf(object) method. You can convert any object to String in java whether it is user-defined class, StringBuilder, StringBuffer or anything else.
toString() The toString() method returns a string representing the object.
The toString() method returns the string representation of an object. A default implementation of this method is included in the Object class. This implementation returns a string containing the name of the object's class and its hash code.
This is not a problem as long as the child class exists. For example, the following is valid:
A.java:
public class A {
B b;
}
B.java:
public class B extends A {
}
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
