Answered: Write an expression that executes the…

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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Question

Write an expression that executes the loop while the user enters a number greater than or equal to 0.
Note: These activities may test code with different test values. This activity will perform three tests, with user input of 9, 5, 2, -1,
then with user input of 0, -17, then with user input of 0 1 0 -1. See "How to Use zyBooks".
Also note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds, and report "Test
aborted."
367012.2549490.qx3zqy7
1 import java.util.Scanner;
2
3 public class NonNegativelooper {
public static void main (String [] args) {
4
5
Scanner scnr
new Scanner(System.in);
int userNum;
7
8
userNum
scnr.nextInt();
9.
while (* Your solution goes here
System.out.println("Body");
scnr.nextInt();
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11
12
userNum
}
System.out.println("Done.");
}
13
14
15
16 }

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Follow-up Question

Write a while loop that prints userNum divided by 2 (integer division) until reaching 1. Follow each number by a space. Example output for userNum = 40:
20 10 5 2 1
Note: These activities may test code with different test values. This activity will perform four tests, with userNum = 40, then with userNum = 2, then with userNum = 0, then with userNum = -1. See "How to Use zyBooks".

Also note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds, and report "Program end never reached." The system doesn't print the test case that caused the reported message.

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