5). What will be the output of the following code? interface Test { int x = 10; } public class MyClass implements Test{ public void temp() { x = 20; System.out.println(x); } public static void main(String[] args) { MyClass m = new MyClass(); m.temp(); } } а. 10 b. 20 c. Compilation error d. Runtime error

5). What will be the output of the following code? interface Test { int x = 10; } public class MyClass implements Test{ public void temp() { x = 20; System.out.println(x); } public static void main(String[] args) { MyClass m = new MyClass(); m.temp(); } } а. 10 b. 20 c. Compilation error d. Runtime error

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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Assume class LinkedQueue has been deńned using the implementation in your textbook that myQueue has been initialized so it is empty. Type the EXACT output of the following code segment. You may assume that the code compiles and executes without errors. LinkedQueue myQueue; int i - 1; int j = 2; int k = 3; int n = 4; myQueue.enqueue (n); myQueue.enqueue (); i = myQueue.peekFront (); myQueue.dequeue (); myQueue.enqueue (k); n = myQueue.peekFront (); myQueue.dequeue (); myQueue.enqueue (); myQueue.enqueue (n); while (ImyQueue.isEmpty ()) { i = myQueue.peekFront (); myQueue.dequeue (); cout << i<< " ": cout << endl;
1) Predict the output of the following code: public class MyClass extends Test public static void main(String[] args) { MyClass x = new MyClass (); Test y = new MyClass(); System.out.println(x.num() + } + y.num()); public static int num() { return 2; } } class Test { public static int num() { return 5; } } a. Runtime error b. 22 c. 2 5 d. Compilation error
// IMPORT LIBRARY PACKAGES NEEDED BY YOUR PROGRAMimport java.util.List;// SOME CLASSES WITHIN A PACKAGE MAY BE RESTRICTED// DEFINE ANY CLASS AND METHOD NEEDED// CLASS BEGINS, THIS CLASS IS REQUIREDclass Solution{ // METHOD SIGNATURE BEGINS, THIS METHOD IS REQUIREDint itemPairs(int num, List<Integer> itemValues, int target) {// WRITE YOUR CODE HERE}// METHOD SIGNATURE ENDS}
Java Program This assignment requires one project with two classes. Class Employee Class Employee- I will attach the code for this: //Import the required packages. import java.text.DecimalFormat; import java.text.NumberFormat; //Define the employee class. class Employee { //Define the data members. private String id, lastName, firstName; private int salary; //Create the constructor. public Employee(String id, String lastName, String firstName, int salary) { this.id = id; this.lastName = lastName; this.firstName = firstName; this.salary = salary; } //Define the getter methods. public String getId() { return id; } public String getLastName() { return lastName; } public String getFirstName() { return firstName; } public int getSalary() { return salary; } //Define the method to return the employee details. @Override public String toString() { //Use number format and decimal format //to…
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A1. Find the output of the following code in order. public class Faculty extends Employee ( E public static void main (String[) args) ( new Faculty () : System.out.println("GCood Luck") public Faculty () ( System.out.println(" Eaculty's no-arg constructor is invoked"): class Employee extends Person ( public Employee () ( System.ont.println( Employee's no-arg constructor is invoked") class Person ( public Person () ( this ("Invoke Person s overloaded constructor"); System.oub.println('Person s no-arg constructor is invoked"); public Person (String s) ( System.out.println(s) ロ

Please encode these classes and run them for inspection/analysis/scrutiny.
(a) Complete the following code by implementing the method calc () in class displayA and displayB to print the output shown below. Please note that you cannot make any changes to the other parts of the program. interface calculate { int calculate(int item); class displayA implements calculate { // implement calc () method here class displayB implements calculate { // implement cale () method here class interfaceTest { public static void main(String args[]) { displayA al = new displayA(); displayB b1 = new displayB): System.out.print(a1. calc(4)+ " and "+ b1. cal (4)); } } OUTPUT: 16 and 1 Your answer
#include <iostream> using namespace std; class A { private: int x; public: A(int _x) { x = _x; } int get() { return x; } }; class B { static A a; public: static int get() { return a.get(); } }; int main(void) { B b; cout << b.get(); return 0; } Excecute and provide the screenshot.
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