What will be output of the following code?int num = 10;if(num > 0)num = num + 5;elsenum = num-5;num--;System.out.print(num);-1510О 14О 15O O O O

Answered: What will be output of the following…

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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int a; System.out. println ("a = " + a); display Oa-0 The statement is valid and the displayed value of a is random. The statement is invalid because a is used without being initialized.
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char letter1; char letter2; letter1 = 'y'; while (letter1 <= 'z') { letter2 = 'a'; while (letter2 <= 'c'){ System.out.print("" + letter1 + letter2 + " "); ++letter2; } ++letter1; } For this code why did we use "" before and after in this line? System.out.print("" + letter1 + letter2 + " "); ++letter2; What if we don't use the blank quotation would the output be same? because I don't see the reason for putting those quotation mark.
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What will be output of the following code? int num = 10; if(num > 0) num = num + 5; else num = num-5; num--; System.out.print(num); -15 10 14 О 15 ОООО