Can toString method be overridden?

Can toString method be overridden?

Overriding toString() in Java The default toString() method in Object prints “class name @ hash code”. We can override toString() method in our class to print proper output. ... In general, it is a good idea to override toString() as we get get proper output when an object is used in print() or println().

Is it good practice to override toString?

ToString method is intended to be used for general display and debugging purposes. The default implementation simply provides the object type name. The default implementation is not very useful, and it is recommended that the method be overridden.

How do you override a toString method in a class?

To override the ToString method in your class or struct:

1. Declare a ToString method with the following modifiers and return type: C# Copy. ...
2. Implement the method so that it returns a string. The following example returns the name of the class in addition to the data specific to a particular instance of the class.

What happens if you dont override toString?

So, whenever you use or print a reference variable of type in which toString() method is not overrided, you will get an output like above. You will not get what the object actually has in it. There will be no information about state or properties of an object.

Can we override compareTo method?

In order to change the sorting of the objects according to the need of operation first, we have to implement a Comparable interface in the class and override the compareTo() method. ... sort() method will not work, as it used to work on primitive types, so when we call the Arrays.

Why do we need to override toString method?

The toString() method returns the string representation of the object. If you print any object, java compiler internally invokes the toString() method on the object. So overriding the toString() method, returns the desired output, it can be the state of an object etc.

How do you declare a toString method in java?

How to use the toString() method

1. class HelloWorld { public static void main( String args[] ) { //Creating an integer of value 10. Integer number=10; ...
2. class HelloWorld { public static void main( String args[] ) { // The method is called on datatype Double. ...
3. class Pet{ String name; Integer age;

Why do we override toString?

The toString() method returns the string representation of the object. If you print any object, java compiler internally invokes the toString() method on the object. So overriding the toString() method, returns the desired output, it can be the state of an object etc.

Can final method be overridden?

Can We Override a Final Method? No, the Methods that are declared as final cannot be Overridden or hidden. For this very reason, a method must be declared as final only when we're sure that it is complete.

Can You Override method in the same class?

• You can't override a method within the same class. It means you have to do it in the child class using the Inheritance concept. To override the Parent Class method, you have to create a method in the Child class with the same name and the same number of parameters.

How does ToString method work in Java?

• Definition of Java toString() method. In general, the Java toString() method is used to return the string or textual representation of an object. The object class’s toString method returns a string as the name of the specified object’s class which is followed by ‘@’ sign and the hashcode of the object (unsigned hexadecimal representation).

Why do we use Override method in Java?

• Usage of Java Method Overriding Method overriding is used to provide the specific implementation of a method which is already provided by its superclass . Method overriding is used for runtime polymorphism Rules for Java Method Overriding

What does tostring do?

• toString() is a method used to create String representation of an object. Since every class in Java is a sub-class of Object and Object has toString() method, every class has a default toString() method.