on't copy) all  questions solve please Explain ple

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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all  questions solve please

Explain please

4. The following is a "reference" type.
A) int
B) long
C) boolean
D) String
E) None of these is correct.
5. A(n)
defines the structure of an object or a set of objects.
A) class
B) attribute
C) application
D) constructor
E) method
Transcribed Image Text:4. The following is a "reference" type. A) int B) long C) boolean D) String E) None of these is correct. 5. A(n) defines the structure of an object or a set of objects. A) class B) attribute C) application D) constructor E) method
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