353637/**38* B. Complete a method named blackJack().39* The method is given 2 int values, both of which are* greater than 0. Your method should return whichever* value is nearest to 21 without going over.* Return 0 if they both go over.4041424344* Examples:blackjack(19, 21) -> 21blackjack(21, 19) -> 21blackjack(19, 22) -> 194546474849@param a the first number@param b the second number* @return the integer value as described50515253public int blackjack(int a, int b) {// Complete the method hereX 54555657

public int blackjack(int a, int b) { int diffA, diffB; diffA = 21 - a; diffB = 21 - b;…

/** * B. Complete a method named blackJack(). * The method is given 2 int values, both of which are * greater than 0. Your method should return whichever * value is nearest to 21 without going over. * Return 0 if they both go over. *: * Examples: blackjack(19, 21) -> 21 blackjack(21, 19) -> 21 blackjack(19, 22) -> 19 @param a the first number * @param b the second number * @return the integer value as described */ public int blackjack(int a, int b) { // Complete the method here

/** * B. Complete a method named blackJack(). * The method is given 2 int values, both of which are * greater than 0. Your method should return whichever * value is nearest to 21 without going over. * Return 0 if they both go over. : Examples: blackjack(19, 21) -> 21 blackjack(21, 19) -> 21 blackjack(19, 22) -> 19 @param a the first number * @param b the second number * @return the integer value as described */ public int blackjack(int a, int b) { // Complete the method here

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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Program63.javaWrite a program that estimates the cost of carpet for one or more rooms with rectangular floors. Begin by prompting for the price of carpet per square yard and the number of rooms needing this carpet. Use a loop to prompt for the floor dimensions of each room in feet. In this loop, call a value-returning method with the dimensions and carpet price as arguments. The method should return the carpet cost for each room to main, where it will be printed and accumulated. After all rooms have been processed, the program should display the total cost of the job.Sample Output (image below) Program64.javaWrite a program that demonstrates method overloading by defining and calling methods that return the area of a triangle, a rectangle, or a square.
Chapter 5. PC #13. isPrime Method A prime number is a number that is evenly divisible only by itself and 1. For example, the number 5 is prime because it can be evenly divided only by 1 and 5. The number 6, however, is not prime because it can be divided evenly by 1, 2, 3, and 6. Write a method named isPrime, which takes an integer as an argument and returns true if the argument is a prime number, or false otherwise. Demonstrate the method in a complete program. The program should ask the user to enter a number for primality test or a negative number to exit. Tip: Recall that the % operator divides one number by another, and returns the remainder of the division. In an expression such as num1 % num2, the % operator will return 0 if num1 is evenly divisible by num2. Test Case 1 Please enter a number to check for primality or -1 to exit:\n2ENTER2 is a prime number.\nPlease enter a number to check for primality or -1 to exit:\n3ENTER3 is a prime number.\nPlease enter a…
Chapter 5. PC #17. Rock, Paper, Scissors Game (page 317) Write a program that lets the user play the game of Rock, Paper, Scissors against the computer. The program should work as follows. 1. Add the following two lines to the beginning of your main method. This will allow your computer choices match with the test cases here in HyperGrade. long seed = Long.parseLong(args[0]); Random random = new Random(seed); 2. When the program begins, a random number in the range of 0 through 2 is generated. If the number is 0, then the computer has chosen rock. If the number is 1, then the computer has chosen paper. If the number is 2, then the computer has chosen scissors. (Do not display the computer choice yet.) 3. The user enters his or her choice of "rock", "paper", or "scissors" at the keyboard. You should use 1 for rock, 2 for paper, and 3 for scissors. Internally, you can store 0, 1, and 2 as the user choice, to match with the above schema. 4. Both user and computer choices…
Chapter 5. PC #17. Rock, Paper, Scissors Game (page 317) Write a program that lets the user play the game of Rock, Paper, Scissors against the computer. The program should work as follows. 1. Add the following two lines to the beginning of your main method. This will allow your computer choices match with the test cases here in HyperGrade. long seed = Long.parseLong(args[0]); Random random = new Random(seed); 2. When the program begins, a random number in the range of 0 through 2 is generated. If the number is 0, then the computer has chosen rock. If the number is 1, then the computer has chosen paper. If the number is 2, then the computer has chosen scissors. (Do not display the computer choice yet.) 3. The user enters his or her choice of "rock", "paper", or "scissors" at the keyboard. You should use 1 for rock, 2 for paper, and 3 for scissors. Internally, you can store 0, 1, and 2 as the user choice, to match with the above schema. 4. Both user and computer choices…
Chapter 5. PC #17. Rock, Paper, Scissors Game (page 317) Write a program that lets the user play the game of Rock, Paper, Scissors against the computer. The program should work as follows. 1. Add the following two lines to the beginning of your main method. This will allow your computer choices match with the test cases here in HyperGrade. long seed = Long.parseLong(args[0]); Random random = new Random(seed); 2. When the program begins, a random number in the range of 0 through 2 is generated. If the number is 0, then the computer has chosen rock. If the number is 1, then the computer has chosen paper. If the number is 2, then the computer has chosen scissors. (Do not display the computer choice yet.) 3. The user enters his or her choice of "rock", "paper", or "scissors" at the keyboard. You should use 1 for rock, 2 for paper, and 3 for scissors. Internally, you can store 0, 1, and 2 as the user choice, to match with the above schema. 4. Both user and computer choices…
6.20 LAB: Fibonacci sequence Java? The Fibonacci sequence begins with 0 and then 1 follows. All subsequent values are the sum of the previous two, for example: 0, 1, 1, 2, 3, 5, 8, 13. Complete the fibonacci() method, which has an index, n, as parameter and returns the nth value in the sequence. Any negative index values should return -1.
class Duration: def __init__(self, hours, minutes): self.hours = hours self.minutes = minutes def __add__(self, other): total_hours = self.hours + other.hours total_minutes = self.minutes + other.minutes if total_minutes >= 60: total_hours += 1 total_minutes -= 60 return Duration(total_hours, total_minutes) first_trip = Duration(1, 45)second_trip = Duration(0, 42) first_time = first_trip + second_tripsecond_time = second_trip + second_trip print(first_time.hours, first_time.minutes)print(second_time.hours, second_time.minutes) WHAT IS THE OUTPUT
class Duration: def __init__(self, hours, minutes): self.hours = hours self.minutes = minutes def __add__(self, other): total_hours = self.hours + other.hours total_minutes = self.minutes + other.minutes if total_minutes >= 60: total_hours += 1 total_minutes -= 60 return Duration(total_hours, total_minutes) first_trip = Duration(2, 58)second_trip = Duration(0, 49) first_time = first_trip + second_tripsecond_time = second_trip + second_trip print(first_time.hours, first_time.minutes)print(second_time.hours, second_time.minutes) what is the entire output
Exercise PrintTriangles: Write a method to print each of the following patterns using nested-loops in a class called PrintTriangles. The program shall prompt user for the numRows. The signatures of the methods are: public static void printXxxTriangle(int numRows) // Xxx is the pattern's name 1 1 2 1 1 2 4 2 1 1 2 4 8 4 2 1 1 2 4 8 16 8 4 2 1 1 2 4 8 16 32 16 8 4 2 1 1 2 4 8 16 32 64 32 16 8 4 2 1 1 2 4 8 16 32 64 128 64 32 16 8 4 2 1 (a) PowerOf2Triangle 1 1 1 1 1 1 1 2 1 1 2 1 1 3 3 1 1 3 3 1 1 4 6 4 1 1 4 6 4 1 1 5 10 10 5 1 1 5 10 10 5 1 1 6 15 20 15 6 1 1 6 15…
class Duration: def __init__(self, hours, minutes): self.hours = hours self.minutes = minutes def __add__(self, other): total_hours = self.hours + other.hours total_minutes = self.minutes + other.minutes if total_minutes >= 60: total_hours += 1 total_minutes -= 60 return Duration(total_hours, total_minutes) first_trip = Duration(3, 36)second_trip = Duration(0, 47) first_time = first_trip + second_tripsecond_time = second_trip + second_trip print(first_time.hours, first_time.minutes) what is the output
Write the methods with the following headers:// Return the reversal of an integer, e.g., reverse(456) returns 654public static int reverse(int number)// Return true if number is a palindromepublic static boolean isPalindrome(int number)Use the reverse method to implement isPalindrome. A number is a palindromeif its reversal is the same as itself. Write a test program that prompts theuser to enter an integer and reports whether the integer is a palindrome.
10. Write a static void method named raiseAllDesksToHighest The method should accept an array of StandingDesk references. If the array reference is null, or the array is empty the method can return without doing anything. Otherwise it should adjust the heights of standing desks in the array so that they all have the height of the highest desk in the array.