Concept explainers
(Another Dangling-else Problem) Based on the dangling-else discussion in Exercise 4.27, modify the following code to produce the output shown. Use proper indentation techniques. You must not make any additional changes other than inserting braces and changing the code’s indentation. We’ve eliminated the indentation from the following code to make the problem more challenging. [Note: It’s possible that no modification is necessary.]
- 1 if (y == 8)
- 2 if (X == 5)
- 3 System.out.println("@@@@@");
- 4 else
- 5 System.out.println("#####");
- 6 System.out.println("$$$$$");
- 7 System.out.println("&&&&&");
1 Assuming that x = 5 and y = 8, the following output is produced:
@@@@@
$$$$$
&&&&&
2 Assuming that x = 5 and y = 8, the following output is produced:
@@@@@
3 Assuming that x = 5 and y = 8, the following output is produced:
@@@@@
&&&&&
4 Assuming that x = 5 and y = 7, the following output is produced. [Note: The last three output statements after the else are all part of a block.]
#####
$$$$$
&&&&&
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
- 5. (Algebra: solve 2 X 2 linear equations) You can use Cramer's rule to solve the following 2 X 2 system of linear equation: ax + by = e cx + dy = f ● x = ed - bf bc ad y = af - ec ad bc - Write a program that prompts the user to enter a, b, c, d, e, and f and display the result. If ad- bc is 0, report that The equation has no solution. Enter a, b, c, d, e, f: 9.0, 4.0, 3.0, -5.0, -6.0, -21.0 Enter x is -2.0 and y is 3.0 Enter a, b, c, d, e, f: 1.0, 2.0, 2.0, 4.0, 4.0, 5.0 Enter The equation has no solutionarrow_forward[Updated[ Python Code Pt1: Algorithms and Data Structures Please use the sample input to see if the code works, as the output of the final code, must be the same as the correct output. Follow the details and notes provided and show the complete working sample code. Additionally, include comments to make the code easier to understand. I will show how the output was found (check K);Note: The final code should result in correct output (check I) if sample input A (check H) is used, or else I will give an automatic thumbs down A. TASKThe user inputs a path system and the work needed to traverse them. The goal is to Identify the relationships between paths, whether they have sequential, adjacent, or null relationships. For every sequential and adjacent relationship, give their work done based on the formula (check D). B. SAMPLE A path system illustration //See Image C. Relationship Examples with Sample A as basisSequential relationships: Path1 and Path2 as they are single paths that are…arrow_forward(In java) Lab6C: Cha-Ching For this lab, use a do-while loop.A sentinel loop is a loop (a special while loop or a do-while loop) that continues to process data until itreaches a specific value(s) that signals that it should stop looping; this special value(s) is usuallyindicated as the condition of the while or do-while loop. A good example of a sentinel loop is the whileloop that you had to write to verify user input in Lab6B, the special values were anything in the range of1 to 1000. Another very common application for this is allowing a user to rerun a program.Please write a very simple program that mimics a bank account. The program should start the user outwith $1000. The program should print out a welcome menu once with the options present for the user.The program should allow the user to make a deposit, withdrawal, and see their current balance.Every time the user deposits or withdraws, the program should show the user their new balance; itshould also ask the user if they want…arrow_forward
- DO NOT USE EXISTING ANSWERS ON CHEGG OR COURSE HERO OR ANY OTHER SERVICES PLEASE! Thanks :) CODE IN PYTHON AND SHOW COMMENTS TO EXPLAIN CODE A confused Dutchman trying to speak English could say “I am in the war”, even though there is no hostile activity going on. The confusion1 here is that the English sentence “I am confused” is translated in Dutch as “Ik ben in de war”, which is phonetically (“sounding”) quite close to the first sentence. Such confusion leads to much enjoyment, but can complicate matters a bit. Given a sentence in Dutch and a dictionary containing both correct translations as well as phonetic (incorrect) translations of individual words, find the translation of the sentence and indicate whether it is correct, or in case there is more than one find the total number of correct and incorrect translations. A sentence is correctly translated when each word of the sentence is correctly translated. Input The input consists of: One line with an integer n (1≤n≤20), the…arrow_forward(The conical paper cup problem) You have been given the contract for making little conical cups that come with bottled water. These cups are to be made from a circular waxed paper of 4 inches in radius by removing a sector of length x (see Figure 5-4 below). By closing the remaining part of the circle, a conical cup is made. Your objective is to remove the sector so that the cup is of maximum volume. Instructions Write a program that prompts the user to enter the radius of the circular waxed paper. The program should then output: The length of the removed sector so that the resulting cup is of maximum volume The maximum volume Calculate your answer to two decimal places.Use 3.141592654 for PIarrow_forward(The conical paper cup problem) You have been given the contract for making little conical cups that come with bottled water. These cups are to be made from a circular waxed paper of 4 inches in radius by removing a sector of length x (see Figure 5-4 below). By closing the remaining part of the circle, a conical cup is made. Your objective is to remove the sector so that the cup is of maximum volume. Instructions Write a program that prompts the user to enter the radius of the circular waxed paper. The program should then output: The length of the removed sector so that the resulting cup is of maximum volume The maximum volume Calculate your answer to two decimal places.Use 3.141592654 for PI Format your output with setprecision(2) to ensure the proper number of decimals for testing!arrow_forward
- ( (A + B ) * (C – D) + E / F ) – G Using manual and algorithmic methods, write the following expression to postfix form:arrow_forward(Bar-Chart Printing Program) One interesting application of computers is drawing graphsand bar charts. Write a program that reads five numbers (each between 1 and 30). For each numberread, your program should print a line containing that number of adjacent asterisks. For example,if your program reads the number seven, it should print *******.arrow_forwardQ2) (Perfect Numbers) An integer number is said to be a perfect number if its factors, including 1 (but not the number itself), sum to the number. For example, 6 is a perfect number because 6 = 1 + 2 + 3. Write a function perfect that determines if parameter number is a perfect number. Use this function in a program that determines and prints all the perfect numbers between 1 and 1000. Print the factors of each perfect number to confirm that the number is indeed perfect. Challenge the power of your computer by testing numbers much larger than 1000.arrow_forward
- ▼ Part A - The effect of an arithmetic shift on signed numbers Let's look at see what happens to signed numbers during a shift operation. As with most problems with number representations, errors can be intermittent. Sometimes the code will work as expected, and other times it will behave in a manner that seems to be totally arbitrary. Consider the following code fragment that makes use of the fact that shifting a value left by one place multiplies the number by 2. By passing in the number to be multiplied and the power of 2 to multiply it by (for example 4 = 22) the correct answer should be passed back from the function after the results are printed for the user to examine. signed int mult_2_to_n (signed int num, int n) { signed int result; result = num << n; printf("%d multiplied by 2^%d %d\n", num, n, result); return result; } Using a signed number as the manipulated integer may cause an error in some cases. Several approaches may be used to fix the problem. Which solutions below…arrow_forward*Please help in javascript* Summary: Given integer values for red, green, and blue, subtract the gray from each value. Computers represent color by combining the sub-colors red, green, and blue (rgb). Each sub-color's value can range from 0 to 255. Thus (255, 0, 0) is bright red, (130, 0, 130) is a medium purple, (0, 0, 0) is black, (255, 255, 255) is white, and (40, 40, 40) is a dark gray. (130, 50, 130) is a faded purple, due to the (50, 50, 50) gray part. (In other words, equal amounts of red, green, blue yield gray). Given values for red, green, and blue, remove the gray part. Ex: If the input is: 130 50 130 the output is: 80 0 80 import java.util.Scanner; public class LabProgram {public static void main(String[] args) {/* Type your code here. */}}arrow_forwardHow is the body of a for loop defined? A. The body of a for loop is defined by an indented block of code following the for statement, similar to the body of an if statement. B. The body of a for loop is defined by an opening curly brace, one or more lines of code and a closing curly brace. C. The body of a for loop is defined by a left parenthesis, one or more lines of code and a right parenthesis. D. For loops do not have a body. What is a for loop? A. The for loop is the new improved three loop as it was defined in Python version 2. B. The for loop enables a program to repeat a block of code multiple times. C. The for loop enables a program to repeat a block of code one time, much like the if statement. D. The for loop is a block of code included at the beginning (the for) of a program. Which of the following is an example of a sequence that might be used in a for statement? A. An integer B. A floating point number C. A list D. A boolean variable How is a…arrow_forward
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education