3. Write a java program corresponding to the following UM (a) Publication Hauther: String year: int • Publication(auther: String, yearint) * getvear()int *getAuther(): String + setYearly: int): void * setAuther(a: String): void Book - nbpage: int + Book(auther: String, year: int, pages: int) + getAuther(): String * getPages(): int + setAuther(n: String): void + setPages(p: int): void

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