Exercise 3: 1) Read the following code and try to guess what will be its output. import java.util.": class Car { private int speed; public void setSpeed(int s){ this.speed-s; } public int getSpeed(){ return speed; } } class ChangeSpeedCar extends Thread Car car, int step: public ChangeSpeedCar(Car obj.String s,int a){ super(s); this.step-a; this.car-obj: } public void run(){ for(int i-0;i<10000;i++) ( int c-car.getSpeed();: ctstep: car.setSpeed(c);} public class test { public static void main(String(Jargs){ Car obj =new Car();: obj setSpeed(0): Thi - new ChangeSpeedCar(obj , "MyThreadl",1); ChangeSpeedCar Th2 - new ChangeSpeedCar(obj. "MyThread2",-1): Thl.start(): Th2.start(); try Thread.sleep(1000); }catch(Exception e) System.out.print("Error"):: System.out printin("The speed of the car is "tobj getSpeed();}} Output 2) Write the code and execute it many times. Is the output similar to your previous answer? What's the issue? How can you modify the code to obtain the expected output? Modify the code and execute it.

Exercise 3: 1) Read the following code and try to guess what will be its output. import java.util.": class Car { private int speed; public void setSpeed(int s){ this.speed-s; } public int getSpeed(){ return speed; } } class ChangeSpeedCar extends Thread Car car, int step: public ChangeSpeedCar(Car obj.String s,int a){ super(s); this.step-a; this.car-obj: } public void run(){ for(int i-0;i<10000;i++) ( int c-car.getSpeed();: ctstep: car.setSpeed(c);} public class test { public static void main(String(Jargs){ Car obj =new Car();: obj setSpeed(0): Thi - new ChangeSpeedCar(obj , "MyThreadl",1); ChangeSpeedCar Th2 - new ChangeSpeedCar(obj. "MyThread2",-1): Thl.start(): Th2.start(); try Thread.sleep(1000); }catch(Exception e) System.out.print("Error"):: System.out printin("The speed of the car is "tobj getSpeed();}} Output 2) Write the code and execute it many times. Is the output similar to your previous answer? What's the issue? How can you modify the code to obtain the expected output? Modify the code and execute it.

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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