Question

What is Empty Class? ​

Answer 1

Answer:

Empty class means, a class that does not contain any data members e.g. int a , float b and string etc. However, a class can contain member functions. In below example, both classes will be called as an empty class.

Answer 2

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ɪɴ ᴊᴀᴠᴀ, ᴀ sɪᴍᴘʟᴇ ᴇᴍᴘᴛʏ ᴄʟᴀss ᴏғ ᴊᴀᴠᴀ ғᴏʟʟᴏᴡs ɪɴʜᴇʀɪᴛᴀɴᴄᴇ, ᴀs ɪᴛ ᴀᴜᴛᴏᴍᴀᴛɪᴄᴀʟʟʏ ɪɴʜᴇʀɪᴛs ᴏʙᴊᴇᴄᴛ ᴄʟᴀss, ᴛʜᴇʀᴇғᴏʀᴇ ᴄᴀɴ ᴘᴇʀғᴏʀᴍ ᴛʜᴇ ғᴜɴᴄᴛɪᴏɴᴀʟɪᴛʏ ᴅᴇғɪɴᴇᴅ ɪɴ ᴏʙᴊᴇᴄᴛ ᴄʟᴀss. ɪᴛ ᴀᴜᴛᴏᴍᴀᴛɪᴄᴀʟʟʏ ᴄʀᴇᴀᴛᴇs ᴀ ᴅᴇғᴀᴜʟᴛ ᴄᴏɴsᴛʀᴜᴄᴛᴏʀ ɪɴsɪᴅᴇ ᴛʜᴇ ᴄʟᴀss ᴡɪᴛʜ ᴇᴍᴘᴛʏ ᴅᴇғɪɴɪᴛɪᴏɴ. ғᴏʟʟᴏᴡs ᴘᴏʟʏᴍᴏʀᴘʜɪsᴍ, ᴀs ᴄᴀɴ ʙᴇ ᴜsᴇᴅ ɪɴ ᴀɴʏ ғᴏʀᴍ ʙʏ ᴛʜᴇ ᴇxᴛᴇɴᴅᴇᴅ ᴄʟᴀss......

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