public static void main(String[] args) { MethodTrace trace0bj = new MethodTrace(); traceObj.square(5); System.out.print(" and "); traceObj.divide(4,2); }
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- public class LabProgram { public static void main(String args[]) { Course cis162 = new Course(); int beforeCount; String toDrop; // Example students for testing cis162.addStudent(new Student("Henry", "Nguyen", 3.5)); cis162.addStudent(new Student("Brenda", "Stern", 2.0)); cis162.addStudent(new Student("Lynda", "Robison", 3.2)); cis162.addStudent(new Student("Sonya", "King", 3.9)); toDrop = "Stern"; beforeCount = cis162.countStudents(); cis162.dropStudent(toDrop); System.out.println("Course size: " + beforeCount + " students"); System.out.println("Course size after drop: " + cis162.countStudents() + " students"); } } import java.text.DecimalFormat; // Class representing a student public class Student { private String first; // first name private String last; // last name private double gpa; // grade point average // Student class constructor public Student(String f, String l, double g) {…class Param3 { public int x; private void increase(int p) { x = x*p; } public void calculateX(int y) { increase(y); } public int getX() { return x; } } // in another class Param3 q3 = new Param3(); q3.x = 5; q3.calculateX(7); System.out.println(q3.getX()); what would be the answer for the last two lines ? also above were x = x*p do both x in here are the fields? wouldn't that be cnofusing?public class Main { public static void main(String args[]) { static_out obj1 - new static_out(); static_out obj2 = new static_out(); int a - 2; obj1. add(a, a + 1); obj2.add(5, a); System.out.println(obj1.x + } 4 - 6 7 9 + obj2.y); 12 13 14 class static_out { static int x; static int y; void add(int a, int b) { x = a + b; y - x + b; 15 - 16 17 18 19 - 20 I 21 22 23 24 O 77.4 66.4 O 79 O 97 O12 mt un o70 0 0o 234 111 111 111 12 2222
- public static void simpleLoop(int total) { String tmp = ""; for (int x = 0; x < total; x++) { tmp + (x + ","); } } } System.out.println(tmp.length()); public static void main(String[] args) { simpleLoop (2);public class Geometry{public static void main(String[] args){//asks for user's choice Scanner in = new Scanner(System.in);displayMenu();selectOption(choice);System.out.println("Enter your choice (1-3): ");int choice1 = in.nextInt();System.out.println("Thanks for using the Geometry Calculator - Goodbye!");//Prints if input is a number that is not one of the choiceswhile(choice1 < 1 || choice1 > 3 ){System.out.println("Invalid choice. Please enter 1 - 3: ");choice1 = in.nextInt();}}/**Displays the menu*/public static void displayMenu(){System.out.println("Welcome to the Geometry Calculator Application");System.out.println("1. Calculate the Area of a Circle");System.out.println("2. Calculate the Area of a Rectangle");System.out.println("3. Calculate the Area of a Triangle");}/** This method calculates the area of the circle@return the area of the circle*/public static double circle()// calculates the area of the circle{Scanner in = new Scanner(System.in);System.out.println("What is…import java.util.Scanner; public class LabProgram { // Recursive method to draw the triangle public static void drawTriangle(int baseLength, int currentLength) { if (currentLength <= 0) { return; // Base case: stop when currentLength is 0 or negative } // Calculate the number of spaces needed for formatting int spaces = (baseLength - currentLength) / 2; if (currentLength == baseLength) { // If it's the first line, don't output spaces before the first '*' System.out.println("*".repeat(currentLength) + " "); } else { // Output spaces and asterisks System.out.println(" ".repeat(spaces) + "*".repeat(currentLength) + " "); } // Recursively call drawTriangle with the reduced currentLength drawTriangle(baseLength, currentLength - 2); } public static void drawTriangle(int baseLength) { drawTriangle(baseLength, baseLength); } public static…
- public class worksheet3_1 { public static void main(String[] arg) { ShadowingExample example = new ShadowingExample(); example.x = 99; example.sampleMethod(); }}class ShadowingExample { int x; public void sampleMethod() { int x = 0; System.out.println("the value of local variable x = " + ………………………………………………); System.out.println("the value of instance variable x = " + …………………………………………); }} what should be written in the second print statement so that the output is: the value of instance variable x = 99 what should be written in the first print statement so that the output is: the value of local variable x = 0 options are: samplemethod.x this.x shadowingexample.x x Answer 1 Question 1import java.util.Scanner; public class LabProgram { // Recursive method to draw the triangle public static void drawTriangle(int baseLength, int currentLength) { if (currentLength <= 0) { return; // Base case: stop when currentLength is 0 or negative } // Calculate the number of spaces needed for formatting int spaces = (baseLength - currentLength) / 2; if (currentLength == baseLength) { // If it's the first line, don't output spaces before the first '*' System.out.println(" ".repeat(spaces) + "*".repeat(currentLength)); } else { // Output spaces and asterisks System.out.println(" ".repeat(spaces) + "*".repeat(currentLength)); } // Recursively call drawTriangle with the reduced currentLength drawTriangle(baseLength, currentLength - 2); } public static void drawTriangle(int baseLength) { drawTriangle(baseLength, baseLength); } public…public class Test { public static void main(String[] args) { int count = 1; while (count < 10) { } } } System.out.print(count % 2 ++count; // end while // end main == 1 ? "X" : "Y");
- class Lab4Q1P3 { public static void main(String args[]) { int max = 10;while (max < 10) {System.out.println("count down: " + max);max--;}}} Do you know what is wrong with the program? I know that there is error on the 7th line but I don't know what to fix.1 public class PSP6 { public static void main(String[] args) { System.out.println(finalCarPrice (1)); System.out.println(finalCarPrice (2)); System.out.println(finalCarPrice (3)); } 2 // should print out 33550.0 // should print out 44550.0 // should print out 66550.0 3 4 6. 7 8. /* 9. Task 1: Complete finalCarPrice method to calculate the price of a $30K car 10 The option is an int input argument (assume it will always be 1, 2, or 3): 11 - Option 1 is for entertainment package add-on which cost $500 Option 2 includes option 1 and self-driving package for an additional $10K Option 3 includes option 2 with 3 years warrantly for an addition of $20K 13 14 Calculate the final price of the car with tax. We assume tax is another addition of 10% of the sale price. 15 16 17 */ public static double finalCarPrice(int option){ 18 19 20 21 22 23 24 double basePrice // base price of a car is $30K 30000.0; double finalPrice = 0.0; %3D // Complete task 1 here to update the final price using if else…of code and give their exact output with the tracing steps.