public class MysteryReturn 2 { 3 public static void main(String[] args) 4 { 5 int x = 1; 6 int y = 2; 7 int z = 3; 8 9 z = mystery(x, z, y); 10 System.out.println(x + " " + y + " " + z); 11 } 12 13 public static int mystery(int c, a, int b); 14 { 15 c--; 16 a = 2 * b + c; 17 b = a - 1; 18 System.out.println(b + " " + c); 19 20 return a; 21 } 22 } 1. The mystery method has three parameter variables, a, b, and c. What is the scope of these variables (that is, where can they be used by their name)?

int a = 9; int c = 6; int d = 6; boolean m; if (a==c && c != d) { m = true}; What is the value of m? True False 6 9

JAVA CODE: check output

Fix all errors to make the code compile and complete. //MainValidatorA3 public class MainA3 { public static void main(String[] args) { System.out.println("Welcome to the Validation Tester application"); // Int Test System.out.println("Int Test"); ValidatorNumeric intValidator = new ValidatorNumeric("Enter an integer between -100 and 100: ", -100, 100); int num = intValidator.getIntWithinRange(); System.out.println("You entered: " + num + "\n"); // Double Test System.out.println("Double Test"); ValidatorNumeric doubleValidator = new ValidatorNumeric("Enter a double value: "); double dbl = doubleValidator.getDoubleWithinRange(); System.out.println("You entered: " + dbl + "\n"); // Required String Test System.out.println("Required String Test:"); ValidatorString stringValidator = new ValidatorString("Enter a required string: "); String requiredString =...

public class Side Plot { * public static String PLOT_CHAR = "*"; public static void main(String[] args) { plotxSquared (-6,6); * plotNegXSquaredPlus20 (-5,5); plotAbsXplus1 (-4,4); plotSinWave (-9,9); public static void plotXSquared (int minX, int maxx) { System.out.println("Sideways Plot"); System.out.println("y = x*x where + minX + "= minX; row--) { for (int col = 0; col row * row; col++) { System.out.print (PLOT_CHAR); if (row== 0){ } System.out.print(" "); } for(int i = 0; i <= maxx* maxX; i++) { System.out.print("-"); } System.out.println(); Sideways PHOT y = x*x where -6<=x<=6 Sideways Plot y = x*x where -6<=x<=6 How do I fix my code to get a plot like 3rd picture?

public class DebugBox { private int width; private int length; private int height; public DebugBox() { length = 1; width = 1; height = 1; } public DebugBox(int width, int length, height) { width = width; length = length; height = height; } public void showData() { System.out.println("Width: + width + " Length: " + length + " Height: "+ height); } public double getVolume() { double vol = length + wdth + height; return vol; } } public class DebugFour3 { public static void main(String args[]) { int width = 12, length = 10, height = 8; DebugBox box1 = new DebugBox(); debugBox box2 = new DebugBox(width, length, height); System.out.println("The dimensions of the first box are"); box1.showData; System.out.print(" The volume of the first box is "); showVolume(box1); System.out.println(The dimensions of the...

[java program] public class ScenarioAnalysis { // Instance variables privateVehicle[] vehicles; // all vehicless being analyzed privatedoublegasPrice; // price of one gallon of gas in dollars privatedoubleelectricityPrice; // price of 1 kWh in cents of a dollar, c$/kWh publicScenarioAnalysis ( doublegasPrice, doubleelectricityPrice ) { this.gasPrice = gasPrice; this.electricityPrice = electricityPrice; } /* * Updates the price of gas * Call computeCO2EmissionsAndCost() whenever there is an update on gas prices */ publicvoidsetGasPrice ( doublegasPrice ) { this.gasPrice = gasPrice; computeCO2EmissionsAndCost(); } /* * Returns the gas price */ publicdoublegetGasPrice () { returngasPrice; } /* * Updates the price of electricity * Call computeCO2EmissionsAndCost() whenever there is an update on electricity prices */ publicvoidsetElectricityPrice ( doubleelectricityPrice ) { this.electricityPrice = electricityPrice; } /* * Returns electricity price */ publicdoublegetElectricityPrice...

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()); }}

Java true or false: The method public boolean simpleMethod() { return true; } is a valid mutator?

in this code, the integer on each line shows the line number that is not part of code: what are the parameters of sum: ____ 1 public static int sum(int x, int y){ 2 int z = x +y; 3 return z; 4 } 5 public static void main(String[] args){ 6 ... 7 sum(a+2, b); 8 ... 9 }

// This class discounts prices by 10% public class DebugFour4 { public static void main(String args[]) { final double DISCOUNT_RATE = 0.90; int price = 100; double price2 = 100.00; tenPercentOff(price DISCOUNT_RATE); tenPercentOff(price2 DISCOUNT_RATE); } public static void tenPercentOff(int p, final double DISCOUNT_RATE) { double newPrice = p * DISCOUNT_RATE; System.out.println("Ten percent off " + p); System.out.println(" New price is " + newPrice); } public static void tenPercentOff(double p, final double DISCOUNT_RATE) { double newPrice = p * DISCOUNT_RATE; System.out.println"Ten percent off " + p); System.out.println(" New price is " + newprice); } }

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....

light } What is the output of this Java program? } class Driver { public static void main(String[] args) { int a = 6: int b = 6; int c = 5; int x = 1; if (a> 2) { } } if x = x + 600; (b> 3) { x = x + 60; } if (c < 9) { X = x + 5; System.out.print(x);