public class Test { public static void main(String[] args) { int a = 5; a += 5; } } switch(a) { case 5: } System.out.print("5"); break; case 10: System.out.print("10"); System.out.print("0"); default:

public class Test { public static void main(String[] args) { int a = 5; a += 5; } } switch(a) { case 5: } System.out.print("5"); break; case 10: System.out.print("10"); System.out.print("0"); default:

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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using System; class Program{ // Define PrintBoard method public static void PrintBoard() { Console.WriteLine(" X | | "); Console.WriteLine(" | | "); Console.WriteLine(" | O | "); Console.WriteLine(); } public static void Main(string[] args) { PrintBoard(); // Call PrintBoard method PrintBoard(); // Call it again PrintBoard(); // And again! }} This program is really simple and basic to print a tic tac toe board for the user to eventually play the computer in C#. How can it be modified a little bit to print the board and have each tile labeled with a number to identify the space? I'm a beginner and would like to take this step by step in modifying the code. Thank you!
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 =…
using System;public static class Lab3_2{public static void Main(){// declare the variables and constantsconst double FLAT = 1.25;double weight;double cost, pricePerKg = 0;// Input the weightConsole.Write("Enter a positive weight of the package => ");weight = Convert.ToDouble(Console.ReadLine());// Determine the cost per kilogramif (weight <= 0)Console.WriteLine("*** Invalid weight");else if (weight < 1)pricePerKg = 0.25;else if (weight <= 3.5)pricePerKg = 0.5;else (weight > 3.5)pricePerKg = 1.0;// Compute the cost to send the packageif (weight > 0)cost = weight * pricePerKg + FLAT;elsecost = 0;// Output the resultsConsole.WriteLine("The cost to send the package is {0:C}",cost);Console.ReadLine();}} Remove the error from the given program and run it for input weight 2.5.
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.
Examine this code and determine what happens when it is run: 1 public class Test { int x; 2 3 public Test(String t){ System.out.println("Test"); } public static void main(String[] args) { Test test = new Test ("boo"); System.out.println(test.x); } 4 5 6 7 8 10 } The program has a compile error because Test does not have a default constructor. The program has a compile error because System.out.println method cannot be invoked from the constructor. ) The program runs successfully and prints out: Test O The program has a compile error because you cannot create an object from the class that defines the object.
public class Course{String name;String dept;int number;public Course (String n, String d, int n){name = n;dept = d;number = n;}public String toString(){return "Course " + name + " in " + dept + " #: " + number;}public static void main (String [] args){Scanner in = new Scanner(System.in);add 10 lines using the scanner and saving them as strings The input for each line will be entered a String, a space, another String, and an int. Parse the input string into those three items and make an instance of Course. Add the new Course instance to a generic ArrayList of Course. print out each Course in the ArrayList.
public class main { public static void main(String [] args) { Dog dog1=new Dog(“Spark”,2),dog2=new Dog(“Sammy”,3); swap(dog1, dog2); System.out.println(“dog1 is ”+ dog1); System.out.println(“dog2 is ”+ dog2); } public static void swap(Dog a, Dog b) { String nameA = a.getName(); String nameB = b.getName(); a.setName(nameB); b.setName(nameA); } What is the output of the main()?
public class Test { } public static void main(String[] args){ int a = 10; System.out.println(a*a--); }
public class Test { } public static void main(String[] args) { String str = "Salom"; System.out.println(str.indexOf('t)); }
Java - Smallest Number
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 }
TASK 3. Console Input and Output. Review Scanner class and its methods, Implement the following code, make sure it runs without errors. 1 package 1lessons; 3 import java.util.Scanner; 4 5 public class ReportSum3 { public static void main(String args[]) { Scanner sc = new Scanner(System. in); 60 7 8 // Prompt the user to enter the first integer System.out.println("Enter the value for 'a' and press Enter: "); int a = sc.nextInt(); // Prompt the user to enter the second integer System.out.println("Enter the value for 'b' and press Enter: "); int b = sc.nextInt(); 10 11 12 13 14 15 16 17 18 19 20 21 22 } //Close the Scanner. It's a good practice to release the resource that was acquired sc.close(); // Display the result System.out.printf( "Provided Integers: %4d and %4d, the total is %5d\n", a, b, (a + b)); } To simplify the task, we came out with the idea to use Methods. Implement a method to add two integers.