• Write and test a singleton class - Verify getInstance () returns a non-null value • Use Assertions. assertNonNull() - Verify getInstance () returns the identical instance when it is called multiple times. • Use hashCode () and assertEquals() - Use assertSame () alternatively.
• Write and test a singleton class - Verify getInstance () returns a non-null value • Use Assertions. assertNonNull() - Verify getInstance () returns the identical instance when it is called multiple times. • Use hashCode () and assertEquals() - Use assertSame () alternatively.
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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full runnable java code
![HW 3
• Write and test a singleton class
- Verify getInstance () returns a non-null value
• Use Assertions. assertNonNull ()
- Verify getInstance () returns the identical instance
when it is called multiple times.
Use hashCode () and assertEquals()
- Use assertSame () alternatively.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd61bf759-c37a-4d54-9b8a-eeacbf31700e%2F85ef947e-88e6-4e84-a70b-1811d7fe2a29%2Fqfk5ojh_processed.png&w=3840&q=75)
Transcribed Image Text:HW 3
• Write and test a singleton class
- Verify getInstance () returns a non-null value
• Use Assertions. assertNonNull ()
- Verify getInstance () returns the identical instance
when it is called multiple times.
Use hashCode () and assertEquals()
- Use assertSame () alternatively.
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