Java program to create a singleton class with method name as that of class
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Severity: 8192
Message: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated
Filename: libraries/Filtered_db.php
Line Number: 23
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Program/Source Code:
The source code to create a singleton class with method name as that of the class is given below. The given program is compiled and executed successfully.
Output:
Explanation:
In the above program, we created a singleton class Singleton and public class Main. The Singleton class contains a static method with a class name that returns the instance of the class.
The Main class contains a static method main(). The main() is an entry point for the program. Here, we created the instances obj1, obj2, obj3 and compared all objects, and printed the appropriate message.