We all love the mechanism of python, where we don’t have to bother about data types of the variables (don’t we!)
Interestingly we have one class in Java too, which is pretty similar !
Yes, you guessed it right! It’s java.lang.Object
java.lang.Character java.lang.Integer java.lang.String java.lang.Double java.lang.Boolean
Such a behaviour can be attributed to the fact that java.lang.Object is super class to all other classes. Hence, a reference variable of type Object can be practically used to refer objects of any class. So, we could also assign y = new InputStreamReader(System.in) in the above code!
This article is contributed by Ashutosh Singh. If you like GeeksforGeeks and would like to contribute, you can also write an article and mail your article to email@example.com. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above
- Program to check if a String in Java contains only whitespaces
- Types of JVM Garbage Collectors in Java with implementation details
- Program to check if the String is Null in Java
- Program to check if the String is Empty in Java
- How to create a Facebook login using an Android App?
- Difference between Inheritance and Composition in Java
- Integer.MAX_VALUE and Integer.MIN_VALUE in Java with Examples
- HTTP/2 Client feature of Java 9 with Example
- SimpleBindings putAll() method in Java with Examples
- HijrahChronology dateEpochDay() method in Java with Example
- MessageFormat setFormatByArgumentIndex() method in Java with Example
- SimpleBindings remove() method in Java with Examples
- ParsePosition getIndex() method in Java with Example