What is the output of the following code: public class A public int methodOfA(int i) { i+= 10; return i*= 2; public class B extends A { public int methodOfB(int i) { i*= 40; return methodOfA(i); } public class MainClass { public static void main(String] args) { Bb= new B(); System.out.println(b.methodOfB(100));
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- public class Secret private int x; private static int y; public static int count; public int z; public Secret () } X ?t = 2 { public Secret (int a) } { public Secret (int a, int b) } { public String toString() return ("x = " count = " + count); { public static void incrementY () { { 54. How many constructors are present in the class definition above? C. 2 d. 3 b. 1 55. What does the default constructor do in the class definition above? a. Sets the value of x to 0 c. Sets the value of x to 0 and the value of z to 1 d. There is no default constructor. b. Sets the value of z to 1 56. Based on the class definition above, which of the following statements is illegal? Secret.incrementY (); b. Secret.count++3B a. c. Secret. 2++; d. None of these 13class overload { int x; double y; void add(int a , int b) { x = a + b; } void add(double c , double d) { y = c + d; } overload() { this.x 0; %3D this.y = 0; } %3D } class Overload_methods { public static void main(String args[]) { overload obj int a = 2; double b - 3.2; obj.add(a, a); obj.add(b, b); System.out.println(obj.x + } = new overload(); + obj.y); } #3Run the code10. public static void methodl (int i, int num) { for (int j = 1; j <= i; j++) { " "); System.out.print (num + num *= 2; } System.out.println(); } public static void main(String[] args) { int i = 1; while (i <= 6) { methodl (i, 2); i++; }
- 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?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.class class { public static void main(String args[]) { int a =5; int b =10; first: { second: { third: { if(a == b >>1) break second; } System.out.println(a); } System.out.println(b); } } } Give result for the code Java Try to do ASAP
- QUESTION 9 Public Class Employee { public static int y; Private int age; Public Employee(0{ age=0;} public int get_age() { return age;} Public Class Test { public static void main(String[] args) { Employee q = new Employee(); q.y=2; Employee.y=10; System.out.println("y=" + q.y); a. What is the output of the following code? b. Insert a System.out.println() statement that prints out q's agepublic class Main{ public static void main(String args[]) { Main m = new Main(); m.go(); } public void go() { Customer c = new Customer("Tom", "Smith"); Order o = new Order(c); o.addItem(new Item("Greeting Card", 1.50, 1)); o.addItem(new Item("Baseball Glove", 54.00, 1)); o.addItem(new Item("Notebook", 2.50, 3)); System.out.println(o); }}Exercise (5): Strings A. String Length method public class MyClass { public static void main(String[] args) { String txt = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; System.out.println("The length of the txt string is: " + txt.length()); ) } B. Uppercase and Lowercase methods public class MyClass { public static void main(String[] args) { String txt = "Hello World"; System.out.println(txt.toUpperCase ()); // Outputs "HELLO WORLD" System.out.println(txt.toLowerCase ()); // Outputs "hello world" }} C. String concatenation The + operator can be used between strings to combine them. This is called concatenation. You can also use the concat() method to concatenate two strings public class MyClass { public static void main(String[] args) { String firstName = "Amani"; String fatherName = "Sabri"; + fatherName); System.out. println(firstName + System.out.println(firstName.concat (fatherName)); }} 1. Computer Programming (1) By: lect. Amani Abumansour
- For the following four classes, choose the correct relationship between each pair. public class Room ( private String m type; private double m area; // "Bedroom", "Dining room", etc. // in square feet public Room (String type, double area) m type type; m area = area; public class Person { private String m name; private int m age; public Person (String name, int age) m name = name; m age = age; public class LivingSSpace ( private String m address; private Room[] m rooms; private Person[] m occupants; private int m countRooms; private int m countoccupants; public LivingSpace (String address, int numRooms, int numoccupants) m address = address; new int [numRooms]; = new int [numOceupants]; m rooms %3D D occupants m countRooms = m countOccupants = 0; public void addRoom (String type, double area)3. private int X; public int z; public Secret () } 0 = X { public Secret(int a) } { public Secret (int a, int b) } { public String toString() '. + A + u = K ' + X + w count ! (qunoo + { public static void incrementY () } { 54. How many constructors are present in the class definition above? C. 2 d. 3 a. b. 1 c. Sets the value of x to 0 and the value of z to 1 d. There is no default constructor. 55. What does the default constructor do in the class definition above? a. Sets the value of x to 0 b. Sets the value of z to 1 56. Based on the class definition above, which of the following statements is illegal? Secret.incrementY(); b. Secret.count++; c. Secret.z++B d. None of theseWrite dry run of following program (java-oop) public class Movie { private String rating; private int ID; private String title; public Movie() { rating = ""; ID = 0; title = ""; 7/3 } public Movie(String aRating, int aID, String aTitle) { rating = aRating; ID = aID; title = aTitle; } public String getRating() { return rating; } public void setRating(String aRating) { } rating = aRating; public int getID() { return ID; } public void setID(int aID) { ID = aID; } public String getTitle() { return title; } public void setTitle(String aTitle) { title = aTitle; } public double calcLateFees(int days) { return 2.0 * days; } public boolean equals(Object obj) { if(obj == null) return false; else if(getClass() != obj.getClass()) { } } Movie other = (Movie)obj; return (rating.equals(other.rating) && ID == other.ID && title.equals(other.title)); return false; else public String toString() 8/3 } } { return "\nMPAA Rating: " + rating + "\nID Number: " + ID + "\nMovie Title: " +…