Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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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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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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