Question 16What does the following code print out?public class MethodTrace{public void square(int x){System.out.print(x*x);}public void divide(int x, int y){System.out.println(x/y);}public static void main(String[] args) {MethodTrace trace0bj = new MethodTrace();traceObj.square(5);System.out.print(" and ");traceObj.divide(4, 2);}}25 and 225 and .522525 2Nothing, it does not compile.

Answered: public static void main(String[] args)…

public static void main(String[] args) { MethodTrace trace0bj = new MethodTrace(); traceObj.square(5); System.out.print(" and "); traceObj.divide(4,2); }

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

See similar textbooks

Similar questions

ANSWER MUST BE IN PYTHON3. METHOD HEADER BELOW. #!/bin/python3 import math import os import random import re import sys import numpy as np import pandas as pd from sklearn.linear_model import LinearRegression def read_dataframe(): # Return a pandas dataframe from stdin return pd.read_csv(sys.stdin) def read_matrix(): # Return column names and data as a matrix df = read_dataframe() return list(df.columns), df.values def read_list(): # Return column names and data as a list of lists # Each element in the list corresponds to columns in the data col_names, val = read_matrix() return col_names, val.T.tolist() # # Complete the 'main' function below. # # The function is expected to return a STRING. # def main(): # Write your code here if __name__ == '__main__': fptr = open(os.environ['OUTPUT_PATH'], 'w') result = main() fptr.write(result + '\n') fptr.close()
Consider the class below. public class Addition { private int sum = 0; public static void add (int x, int sum) { sum += x; }//end method add public static void main (String[] args) { int sum = 0; add (2, sum); add (3, sum); add (4, sum); "1 System.out.println("The total is: + sum); } //end main method }//end class Addition The programmer who wrote the code above and expected the program's output to say: The total is: 9 That is, the programmer wanted the add method to add values to the sum class variable. Fix the code so that it works properly by making edits such as changing names, crossing out code, adding code, etc.
using System; class main { publicstaticvoid Main(string[] args) { Random rnd = new Random(); char randomChar = (char)rnd.Next('a','z'); Console.Write("Hi, my name is Stevie. I am thinking of a letter in the alphabet.\nGuess which letter I am thinking of! "); char guessedColor = Console.ReadLine()[0]; do { if(guessedColor != randomChar) { Console.WriteLine("Your guess is not correct.Please enter another letter "); guessedColor = Console.ReadLine()[0]; } if(guessedColor == randomChar) { Console.WriteLine("You guessed correctly!"); } }while(guessedColor != randomChar); } } Hello! This program is written in C# to play a guessing game with the user. The user guesses a letter of the alphabet and the program says if the guess is wrong or not. How would it be changed to guess words? For example, word in the animal category?
public static int countIt (int n) { int count = 0; for (int i = n; i > 0; i /= 2) for (int j = 0; j < 10; j++) count += 1; return count; } Big-O notation: Explanation:
using System; using System.Linq; class main { publicstaticvoid Main (string[] args) { Console.WriteLine("Hi, my name is Stevie. I am thinking of an Animal.\nGuess which animal I am thinking of> "); string[] words = newstring[7]{"sheep","goat","lion","horse","dog","cat","lizard"}; Random rnd = new Random(); int random = rnd.Next(0, 5); string secretWord = words[random]; secretWord = secretWord.ToUpper(); int lives = 5; int counter = -1; int wordLength = secretWord.Length; char[] secretArray = secretWord.ToCharArray(); char[] printArray = newchar[wordLength]; char[] guessedLetters = newchar[26]; int numberStore = 0; bool victory = false; foreach(char letter in printArray) { counter++; printArray[counter] = '-'; } while(lives > 0) { counter = -1; string printProgress = String.Concat(printArray); bool letterFound = false; int multiples = 0; if (printProgress == secretWord) { victory = true; break; } if (lives > 1) { Console.WriteLine("You have {0} lives!", lives); } else {…
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 =…
Complete the convert() method that casts the parameter from a double to an integer and returns the result.Note that the main() method prints out the returned value of the convert() method. Ex: If the double value is 19.9, then the output is: 19 Ex: If the double value is 3.1, then the output is: 3 code: public class LabProgram { public static int convert(double d){ /* Type your code here */ } public static void main(String[] args) { System.out.println(convert(19.9)); System.out.println(convert(3.1)); }}
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 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 Main { public static void main(String[] args) { System.out.println("Your factorial is: " + factorial(9)); }} public static int factorial(int number) { if (number == 0) { return 1; } return number * factorial(number -1); } i need help fixing this code involving recursion
using System;class TicTacToe{ static void Print(char[] board) { Console.WriteLine(); Console.WriteLine($" {board[0]} | {board[1]} | {board[2]} "); Console.WriteLine($" {board[3]} | {board[4]} | {board[5]} "); Console.WriteLine($" {board[6]} | {board[7]} | {board[8]} "); Console.WriteLine(); } static void Main(string[] args) { char[] board = new char[9]; for (int i = 0; i < 9; i = i + 1) { board[i] = ' '; } Print(board); board[4] = 'X'; Print(board); board[0] = 'O'; Print(board); board[3] = 'X'; Print(board); board[5] = 'O'; Print(board); board[6] = 'X'; Print(board); board[2] = 'O'; Print(board); }} Hello! This program is in C# could a line of code be added to ask the user if they want to be "X" or if they want to be "O"?
using System; class HelloWorld { static void Main() { int rows=21; int columns=76; for(int i=0;i<rows;i++) //for loop for printing the pattern for 21 rows { for(int j=1;j<=columns;j++) //for loop for printing the pattern in 76 columns { if((i+j)%7!=1 ) //if the addition of i and j does not give remainder of 1 when divided by 7 then Console.Write("-"); //print dash - on console else //otherwise peint a space on console Console.Write(" "); } Console.WriteLine(); //print a newline for printing on new row... } } }