Which of the following does belong to the wrapper class of Number in java.lang package? I. Int II. Short III. Long IV. Byte A. Il and II B. II, III and IV C. I, Il and III D. I, II, II and IV

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
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no explain give answer only for 7 and 8

7. Which of the following does belong to the wrapper class of Number in java.lang
package?
I.
Int
I.
Short
I.
Long
IV.
Byte
Il and II
B. II, III and IV
C. I, Il and II
D. I, II, III and IV
A.
8. The following statements are related to polymorphism concept EXCEPT
A. occurs when one or more classes or objects are related to each other by
inheritance.
B. use the same message but different action taken.
C. ability to redefine methods for derived classes.
D. one action to all common method.
Transcribed Image Text:7. Which of the following does belong to the wrapper class of Number in java.lang package? I. Int I. Short I. Long IV. Byte Il and II B. II, III and IV C. I, Il and II D. I, II, III and IV A. 8. The following statements are related to polymorphism concept EXCEPT A. occurs when one or more classes or objects are related to each other by inheritance. B. use the same message but different action taken. C. ability to redefine methods for derived classes. D. one action to all common method.
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