What is the output of this program

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Identifiers

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Identifiers

Can we use "@" symbol as identifier?

Can any identifier be start with digit?

Identifiers are case sensitive or not?

Upto how long characters we can take identifiers?

Can we use Reserved words as identifiers?

Can we use Reserved literals as identifier?

Can we use predefined Class/Interface name as identifier?

Which of the following are valid identifiers?

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