After the following code is executed, which of I, II and/or III will evaluate to true? String s1 = "xyz"; String s2 = s1; String s3 = s2; %3D

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
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Java:

What does the == sign actually compare? I heard that when you use == to compare strings, sometimes == makes your program have logic errors.

After the following code is executed, which of I, Il and/or III will evaluate
to true?
String s1 = "xyz";
String s2 = s1;
String s3 = s2;
I. s1.equals(s3)
II. s1 == s2
III. s1
%3D
s3
==
O a. Il only
O b. Il and III only
O c. I, II, II
O d. III only
e. I only
Your answer is incorrect.
The correct answer is:
1, II, II
Transcribed Image Text:After the following code is executed, which of I, Il and/or III will evaluate to true? String s1 = "xyz"; String s2 = s1; String s3 = s2; I. s1.equals(s3) II. s1 == s2 III. s1 %3D s3 == O a. Il only O b. Il and III only O c. I, II, II O d. III only e. I only Your answer is incorrect. The correct answer is: 1, II, II
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