Public – main method is called by JVM to run the method which is outside the scope of project therefore the access specifier has to be public to permit call from anywhere outside the application static – When the JVM makes are call to the main method there is not object existing for the class being called therefore it has to have static method to allow invocation from class. void – Java is platform independent language therefore if it will…

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An object reference be cast to an interface reference when the object implements the referenced interface. In Java, an object reference can be cast to an interface reference when the object’s class implements that interface. This is possible because Java supports polymorphism through interfaces. Here’s a brief explanation: When the Object Implements the Interface: If a class implements an interface, you can cast an object of that class to a reference of the interface type. java interface MyInterface { void…

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An I/O filter is an object that reads from one stream and writes to another, usually altering the data in some way as it is passed from one stream to another. In the context of Core Java, an I/O filter typically refers to an object that is used to perform filtering on data as it is read from or written to a stream. Input/Output (I/O) streams in Java are used for reading from or writing to various sources, such as…

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