1 import java.util.Scanner; 2 3 public class RedBalloon { public static void main (String ] args) { Scanner scnr = new Scanner(System.in); boolean isRed; boolean isBalloon; 4 5 6. 7 8 isRed = scnr.nextBoolean(); isBalloon = scnr.nextBoolean(); 10 11 12 13 14 } 15 }

1 import java.util.Scanner; 2 3 public class RedBalloon { public static void main (String ] args) { Scanner scnr = new Scanner(System.in); boolean isRed; boolean isBalloon; 4 5 6. 7 8 isRed = scnr.nextBoolean(); isBalloon = scnr.nextBoolean(); 10 11 12 13 14 } 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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I have my code here and I am getting errors (I have also attached my code): " import java.util.Compiler; public class Test Score { public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.println("Ënter the first exam Score: "); Double Score1 = scan.nextDouble(); System.out.println("Enter the second exam Score: "); Double Score2 = scan.nextDouble(); System.out.println("Enter the third exam Score: "); Double Score3 = scan.nextDouble(); System.out.println("Enter the fourth exam Score: "); Double Score4 = scan.nextDouble(); System.out.println("Enter the fifth exam Score: "); Double Score5 = scan.nextDouble(); Double total = Score1 + Score2 + Score3 + Score4 + Score5 Double average = total/5; if (average >= 90) { System.out.printf("your average was a: %f and recieved an A in this Class", average ); } else if (average >= 80) {…
JAVA CODE: check output
there are 2 errors in this code can you fix it for me? public class Exercise09_10 { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Enter a, b, c: "); double a = input.nextDouble(); double b = input.nextDouble(); double c = input.nextDouble(); QuadraticEquation equation = new QuadraticEquation(a, b, c); double discriminant = equation.getDiscriminant(); if (discriminant < 0) { System.out.println("The equation has no roots"); } else if (discriminant == 0) { System.out.println("The root is " + equation.getRoot1()); } else // (discriminant >= 0) { System.out.println("The roots are " + equation.getRoot1() + " and " + equation.getRoot2()); } } }
public class Ex08FanTest { public static void main (String[] args){ Ex08Fan fan1= new Ex08Fan(); Ex08Fan fan2= new Ex08Fan(); fan1.setOn(true); fan1.setSpeed(3); fan1.setRadius(10); fan1.setColor("yellow"); fan2.setOn(true); fan2.setSpeed(2); fan2.setRadius(5); fan2.setColor("blue"); fan2.setOn(false); System.out.println("Fan 1:\n" + fan1.toString()); System.out.println("\nFan 2:\n" + fan2.toString()); }}
Beginning tests. UNIT TEST FAILED: addInventory() Tests complete. Note: UNIT TEST FAILED is preceded by 3 spaces. 25 24 public class CallInventoryTag { public static void main(String [] args) { Scanner scnr = new Scanner (System.in); InventoryTag redSweater new InventoryTag(); int sweaterShipment; int sweaterInventoryBefore; 25 26 27 28 29 30 31 32 SweaterInventoryBefore redSweater.getQuantityRemaining() SweaterShipment = scnr.nextInt(); 33 34 System.out.println("Beginning tests."); 35 36 37 11 FIME add unit test for addInventory 38 1o Your solution goes here / 39 42 System.out.printin("Tests complete."); 42 )
import java.util.Scanner;public class MP2{public static void main (String[] args){//initialization and declarationScanner input = new Scanner (System.in);String message;int Option1;int Option2;int Quantity;int TotalBill;int Cash;int Change;final int SPECIALS = 1;final int BREAKFAST = 2;final int LUNCH = 3;final int SANDWICHES = 4;final int DRINKS = 5;final int DESSERTS = 6;//For the Special, Breakfast, Lunch Optionsfinal int Meals1 = 11;final int Meals2 = 12;final int Meals3 = 13;final int Meals4 = 14;//First menu and First OptionSystem.out.println("\t Welcome to My Kitchen ");System.out.println("\t\t SPECIALS");System.out.println("\t\t [2] BREAKFAST MEALS");System.out.println("\t\t [3] LUNCH MEALS");System.out.println("\t\t [4] SANDWICHES");System.out.println("\t\t [5] DRINKS");System.out.println("\t\t [6] DESSERTS");System.out.println("\t\t [0] EXIT");System.out.print("Choose an option ");Option1 = input.nextInt();//first switch case statementsswitch(Option1){case (SPECIALS):message…
8) Now use the Rectangle class to complete the following tasks: - Create another object of the Rectangle class named box2 with a width of 100 and height of 50. Note that we are not specifying the x and y position for this Rectangle object. Hint: look at the different constructors) Display the properties of box2 (same as step 7 above). - Call the proper method to move box1 to a new location with x of 20, and y of 20. Call the proper method to change box2's dimension to have a width of 50 and a height of 30. Display the properties of box1 and box2. - Call the proper method to find the smallest intersection of box1 and box2 and store it in reference variable box3. - Calculate and display the area of box3. Hint: call proper methods to get the values of width and height of box3 before calculating the area. Display the properties of box3. 9) Sample output of the program is as follow: Output - 1213 Module2 (run) x run: box1: java.awt. Rectangle [x=10, y=10,width=40,height=30] box2: java.awt.…
InheritanceDemo.java: // StudentName Today's Date public class InheritanceDemo { public static void main(String[] args) { KleenexBox kb1 = new KleenexBox(); KleenexBox kb2 = new KleenexBox(100); Box justABox = new Box(); System.out.println("justABox has area " + BoxArea(justABox)); System.out.println("kb1 has area " + BoxArea(kb1)); System.out.println("kb2 has this many square inches of tissue: " + KleenexArea(kb2)); } public static double BoxArea (Box b) { return b.width * b.length; } public static double KleenexArea (KleenexBox a) { return a.width * a.length * a.numTissues; } } Box.java: // Student Name Today's Date public class Box { public double width; public double length; public String label; } KleenexBox.java: // Student's Name Today's Date public class KleenexBox extends Box { public int numTissues; // A new Kleenex box public KleenexBox() { numTissues = 50; length = 8.0; width = 5.0; } // A new Kleenex box with a specific number of tissues public…
import java.awt.*; public class TestRectangle {public static void main(String[] args) {Rectangle r1 = new Rectangle(5, 4, 10, 17);Rectangle r2 = new Rectangle(10, 10, 20, 3);Rectangle r3 = new Rectangle(0, 1, 12, 15);Rectangle r4 = new Rectangle(10, 10, 20, 3);System.out.println("r1 = " + r1);System.out.println("r2 = " + r2);System.out.println("r3 = " + r3);System.out.println("r2 equals r1? " + r2.equals(r1));System.out.println("r2 equals r2? " + r2.equals(r2));System.out.println("r2 equals r3? " + r2.equals(r3));System.out.println("r2 equals r4? " + r2.equals(r4)); System.out.println("r1 contains (6, 8)? = " + r1.contains(6, 8));System.out.println("r2 contains (6, 8)? = " + r2.contains(6, 8));System.out.println("r3 contains (6, 8)? = " + r3.contains(6, 8));System.out.println("r2 contains (30, 13)? = " + r2.contains(30, 13)); r1.intersect(r3);r2.intersect(r4);System.out.println("r1 intersect r3 = " + r1);System.out.println("r2 intersect r4 = " + r2);…