Java : 3. Consider the following class definitions:public class Car{public String make;protected int weight;private String color;private Car(String make, int weight, String color){this.makethis.weightthis.color= make;= weight;= color;}public Car( )this("unknown", -1, “white");public class ElectricCar extends Car{private int rechargeHour;public ElectricCar( )this(10);private ElectricCar(int charge)super( );rechargeHour = charge;} In the following main( ), identify the valid or invalid statements. If invalid, tell why.public class TestMain{public static void main(String[] args){Car myCar1, myCar2;ElectricCar myElec1, myElec2;myCar1 = new Car( );myCar2 = new Car("Ford", 1200, "Green");myElec1 = new ElectricCar( );myElec2 = new ElectricCar(15);}}

The invalid statements along with the explanation are given below.

In the following main( ), identify the valid or invalid statements. If invalid, tell why. public class TestMain { public static void main(String [ ] args) { Car myCar1, myCar2; ElectricCar myElec1, myElec2; myCar1 = new Car( ); myCar2 = new Car("Ford", 1200, “Green"); myElec1 = new ElectricCar( ); myElec2 = new ElectricCar(15); } }

In the following main( ), identify the valid or invalid statements. If invalid, tell why. public class TestMain { public static void main(String [ ] args) { Car myCar1, myCar2; ElectricCar myElec1, myElec2; myCar1 = new Car( ); myCar2 = new Car("Ford", 1200, “Green"); myElec1 = new ElectricCar( ); myElec2 = new ElectricCar(15); } }

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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