b. public class Client { public static void main (String [] args){ Color v = new Red (); v.doColor (); Complete the above program by using method overriding. Justify your answer why you claim the above piece of code is dynamic method dispatch.
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![b. public class Client {
public static void main (String [] args) {
Color v = new Red ();
v.doColor ();
Complete the above program by using method overriding. Justify your answer why you claim the
above piece of code is dynamic method dispatch.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1833407a-2240-4bba-b06b-b03bab59be1b%2F8c5b1020-5156-4ba7-abfc-03852dee03bf%2F7yjmsl_processed.jpeg&w=3840&q=75)
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- class TenNums {private: int *p; public: TenNums() { p = new int[10]; for (int i = 0; i < 10; i++) p[i] = i; } void display() { for (int i = 0; i < 10; i++) cout << p[i] << " "; }};int main() { TenNums a; a.display(); TenNums b = a; b.display(); return 0;} Continuing from Question 4, let's say I added the following overloaded operator method to the class. Which statement will invoke this method? TenNums TenNums::operator+(const TenNums& b) { TenNums o; for (int i = 0; i < 10; i++) o.p[i] = p[i] + b.p [i]; return o;} Group of answer choices TenNums a; TenNums b = a; TenNums c = a + b; TenNums c = a.add(b);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…package citytech.calculator; public class Calculator { public static void main(String[]args) { System.out.println("Basic Calculator"); //declaring variable: //dataType variableName = value ; double num1 = 10.0; double num2 = 30.0; sum(num1, num2); multiply(num1, num2); } public static void sum(double n1, double n2) { double result = n1 + n2; System.out.println("Sum: "+result); } public static void multiply(double n1, double n2) { double result = n1 * n2; System.out.println("Multiply: "+result); } } Question: Please Check the Calculator app and add subtract and division methods
- For the code below: public class College extends Student { public static void main(String[ ] args) { new College( ); } public College ( ) { this(“First semester"); System.out.println( "Third year" ); } public College (string G ) { System.out.println(G); } } class Student extends S_info { public Student ( ) { System.out.println("Student No. 123"); } public Student (String S) { System.out.println(S); } } class S_info{ public S_info ( ) { System.out.println("student age: 21"); } } 1- Draw the diagram for the constructor chaining. 2- Put the values for the strings G and S. 3- Trace the output for the entire code.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.…class Param3 { public int y; public void method1(int y) { y = y * 3; } public int getY() { return y; } } Param3 q3 = new Param3(); q3.y = 100; q3.method1(25); System.out.println(q3.getY()); what is the output for the system.out.println method and why
- FIX THE CODE PROVIDED BELOW Part 2 - Syntax Errors and Troubleshooting The code below has many syntax (and other) errors. Tasks:Compile the code and fix the errors one at a time. // Lab1a.java // This short class has several bugs for practice. // Authors: Carol Zander, Rob Nash, Clark Olson, you public class Lab1a { public static void main(String[] args) { compareNumbers(); calculateDist(); } publicstatic void compareNumbers() { int firstNum = 5; int secondNum; System.out.println( "Sum is: + firstNum + secondNum ); System.out.println( "Difference is: " + (firstNum - secondNum ); System.out.println( "Product is: " + firstNun * secondNum ); } public static void calculateDistance() { int velocity = 10; //miles-per-hour int time = 2, //hoursint distance = velocity * timeSystem.out.println( "Total distance is: " distanace); } } Part 3 - Print Statements and Simple Methods Use "print" and "println" statements, but use method calls to reduce the number of repeated "print"and "println"…public class A extends C { public void method1() { System.out.print("al "); } public String toString() { return "a"; } } public class B extends D { public void method2() { System.out.print("b2 "); } } public class C extends D { public void method1() { System.out.print("c1 "); } } public class D { public String toString() { return "d"; } public void method1() { System.out.print("d1 "); } public void method2() { System.out.print("d2 "); } } Consider the following code fragment: D[] elements (new B(), new A(), new D(), new C()}; for (int i = 0; i < elements.length; i++) { System.out.print (elements [i] + " "); elements [i].method1(); // part 1 // part 2 // part 3 elements [i].method2(); System.out.println(); } Note that one iteration of this loop prints on its own line with each of the three parts separated by a single space. elements[0] - B(): elements[1] - A(): elements[2] - D():package go; package demo; public class Pokemon { import ; // import Pokemon class (#1) private int hitPoints; static int population; public class Main { public static void main(String[] args) { void attack() { // implementation this.evolve(); } public void evolve() { // implementation } } Pokemon pika = new Pokemon(); pika.hitPoints = 30; (#2) System.out.print(Pokemon.population);(#3) pika.attack(); (#4) pika.evolve(); (#5) } 1. How can we retrieve the value of hitPoints without allowing any other class to change its value? a) Change the access modifier of bitPoints to public b) Change the access modifier of hitPoints to default c) Make the hitPoints a static attribute d) Declare a new public method, say şetHitPoints(int value), that sets the value of hitPoints e) None of the above
- Compute: z = y √x Ex: If the input is 4.0 3.0, then the output is: 1.0 1 import java.util.Scanner; 2 3 public class MathFunctions { 4 5 6 7 8 9 10 11 12 13 14 15 16 17} public static void main (String[] args) { Scanner scnr = new Scanner(System.in); double x; double y; double z; } X = scnr.nextDouble(); y scnr.nextDouble(); /* Your code goes here */ System.out.printf("%.1f\n", z); // This will output z with 1 decimal place. [public class Polygon { private double sideLength; private int sides; private String shape; public double getArea () { int n sides; double a sideLength; return ((a * a * n) / (4 * Math.tan((180 / n) 3.14159 / 180))); public void setPolygon (double sl, int sd, String sh) { sides-sd; sideLength-sl; shape=sh; public Polygon (double sl, int sd, String sh) ( sides-sd; sideLengthsl; shape=sh; public String getShape () { return (shape); } public int getSides () { return (sides); } public double getLength () { return (sideLength); } Write a static method named find that takes as a parameter an array of type Polygon named list. The method should print the shapes of each polygon that has an area greater than 500 and return their count. The method prototype is public static int find (Polygon [] list); Note: assume the array is already declared, populated with data in the main method and ready to be used.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 1
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