public class Car { public void m1( { Sustem.Qut.printla("car 1"); } public void m2() { super.m1(); } public void m2() { System.Qut.printla("car 2"); } public String toString() { return şuper.toString() + super.toString(); } public String toString() { return "vroom"; Create a client class and add the following statements. What is the output? Is it the same as you expected? } public class Truck extends Car { public void m1() { System.Qut.printlal"truck 1"); } Truck mytruck = new Truck (): System.out.printinlmxtuckl: // Output: mytruck.m1(); mytruck.m2(); // Output: // Output:

public class Car { public void m1( { Sustem.Qut.printla("car 1"); } public void m2() { super.m1(); } public void m2() { System.Qut.printla("car 2"); } public String toString() { return şuper.toString() + super.toString(); } public String toString() { return "vroom"; Create a client class and add the following statements. What is the output? Is it the same as you expected? } public class Truck extends Car { public void m1() { System.Qut.printlal"truck 1"); } Truck mytruck = new Truck (): System.out.printinlmxtuckl: // Output: mytruck.m1(); mytruck.m2(); // Output: // Output:

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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Consider the following class definitions: public class Thing { public void string_method (String word) { word = word.substring(word. length() - 1); } } System.out.print(word); public class Thing2 extends Thing { public void string_method(String word) { } super.string_method(word); System.out.print(word.substring(0,1)); } The following code segment appears in a class other than Thing or Thing2 Thing2 thing = new Thing2(); thing.string_method("Tacky"); What is printed as a result of running the code segment? TT Index Out of Bounds Error TackyTacky yy yT
public class Course { private String courseNumber, courseTitle; public Course() { } public Course(String courseNumber, String courseTitle) { this.courseNumber = courseNumber; this.courseTitle = courseTitle; } public void setCourseNumber(String courseNumber) { this.courseNumber = courseNumber; } public void setCourseTitle(String courseTitle) { this.courseTitle = courseTitle; } public String getCourseNumber() { return courseNumber; } public String getCourseTitle() { return courseTitle; } public void printInfo() { System.out.println("Course Information: "); System.out.println(" Course Number: " + courseNumber); System.out.println(" Course Title: " +…
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