Evaluate the following Java expression, if x=3, y=5, and z=10: ++z + y - y + z + x++ Select one: O a. 25 O b. 24 C. 20 O d. 23
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multiple choice questions in java.
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- Write a Java regular expression for each of the following: a. Phone numbers, such as (609) 555-1234 b. Social Security numbers, such as 123-45-6789 c. Dates, such as December 31, 1999Use Java ⮚ Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. ⮚ Symbol Value I 1 V 5 X 10 L 50 C 100 D 500 M 1000.⮚ For example, 2 is written as II in Roman numeral, just two ones added together. 12 is written as XII, which is simply X + II. The number 27 is written as XXVII, which is XX + V + II. ⮚ Roman numerals are usually written largest to smallest from left to right. However, the numeral for four is not IIII. Instead, the number four is written as IV. Because the one is before the five we subtract it making four. The same principle applies to the number nine, which is written as IX. There are six instances where subtraction is used: I can be placed before V (5) and X (10) to make 4 and 9. X can be placed before L (50) and C (100) to make 40 and 90. C can be placed before D (500) and M (1000) to make 400 and 900. ⮚ Given a roman numeral, convert it to an integerCalculate your Physics final Write a Java program to solve the following problem: grade based on the following: Assessment Percent Lab Activity(ies) Quiz (zes)/Test (s) 10% 10 Assignment (s) 208 Midterm Exam (8) 20% Final Exam 40% Theory grade is the quiz/test, midterm and final exam marks. Practical grade is the assignment and lab marks. Final grade is all five marks. But the calculation of Final grade needs to comply with the following rule: If either of the practical or theory grade is less than 50%, the final grade is the lesser of the two. A grade letter must be assigned based on the final grade (See the courses outline for the distribution of grades) You must implement input validation for each mark as follows: Lab mark must be out of 10. Quiz/Test mark must be out of 10. Assignment mark must be out of 20. Midterm mark must be out of 20. Final Exam must be out of 40. Bonus: Modify your code so that you can calculate and display grade for N number of students. Your program must…
- Control structures: In Java only please. Output the position of the largest number and the largest number in the squence a0, a1, a2....ak. For example, the largest number of the squence is 75, 226, 113, 340, 170, 85, 256, 128, 64, 32, 16, 8, 4, 2, 1 is 340, and it's position is 4. Test your program for the following values of x: 75, 111, 678, 732, 873, 2048, and 65535. Thank youJAVA Programming Language: According to the American Heart Association, as you exercise you should periodically check your heart rate to ensure you are in your target zone. Your target zone is a range that is 50% to 85% of your maximum heart rate. The formula for calculating a persons maximum heart rate is 220 minus your age in years. Write a program that reads the users current heart rate, birthday, and the current day (each consisting of month, day, and year). The program should calculate the persons age (in years), the person's maximum heart rate, and the person's target heart rate zone range. Output the users age, current heart rate, target zone range. If their heart rate is in the target zone congratulate them, if it is out of their target zone warn them. Required Methods (Write these first and use them in your algorithm): (your code, particularly for computeAge, must be 100% clear and documented - it's the core of this assignment!) int computeAge(int birthMonth, int birthDay,…In JAVA ASSIGNMENT DESCRIPTION: A half-life is the amount of time it takes for a substance or entity to fall to half its original value. Caffeine has a half-life of about 6 hours in humans. Given caffeine amount (in mg) as input, output the caffeine level after 6, 12, and 24 hours. Output each floating-point value with two digits after the decimal point, which can be achieved as follows:System.out.printf("After 6 hours: %.2f mg\n", yourValue); Ex: If the input is: 100 the output is: After 6 hours: 50.00 mg After 12 hours: 25.00 mg After 24 hours: 6.25 mg Note: A cup of coffee has about 100 mg. A soda has about 40 mg. An "energy" drink (a misnomer) has between 100 mg and 200 mg. THE CODE I HAVE SO FAR: import java.util.Scanner; public class LabProgram { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); double caffeineMg; // "double" supports floating-point like 75.5, versus int for integers like 75. caffeineMg = scnr.nextDouble(); System.out.printf("After…
- Assignment-3 Java Programming: 1. Write a program to input a positive integer and print whether the number is a power of 3 or not.Enter a number: 5 Enter b number: 4 The value of 5 raised to the power of 4 is 625 Enter a number: 2 Enter b number: -4 The number b cannot be negative, try again (3) Write a Java program that prompts the user to enter a sentence (phrase), then it counts how many vowels and consonants in the sentence (phrase). The sentence (phrase) should be typed in by the user in response to a prompt message. Your program must consider the following specifications: Use Letter as the name of your class. Type your name and student number above the class declaration using a block/paragraph comment. Use documentation, comments and code style. Use significant and appropriate identifiers. Use appropriate data type for the variables. Here is a sample run of the program: Enter a string: Programming is fun The number of vowels is 5 The number of consonants is 11Problem Description: The international standard letter/number mapping found on the telephone keypad is shown below: Write a pseudocode and program that reads a letter and displays its corresponding digit. 2 3 1 ABC DEF 4 5 6 GHI JKL MNO 7 8 9 PQRS TUV WXYZ 0 Write a pseudocode on how you would solve the problem in your own word. Write a java program called Phone considering the following directions. Practice here first then write answer on the answer sheet. Also, make sure distinguish high and low caps as Java is case – sensitive. Import and declare a Scanner class Ask user for an Upper – case letter Use the switch statement along with case and break Use the System.exit(1) in the default to terminate the program Print the corresponding digit
- In java Write a program that computes the average of 5 students grades which are entered by the user.Description Write a Java program to take the temperature from the user in Celsius, convert it into Fahrenheit and display it to the user. You can use the following formula for this purpose: F=9C/5+32 Where. Cis the temperature in Celsiuş and F is the temperature in Fahrenheit. Note: You can assume that C and F are integer values. Sample Input:1 Sample Output: 33Write a structured Java program to calculate the parking fare forcustomers who park their cars in a parking lot when the following information isgiven:a) A character showing the type of vehicle: C for car, B for bus, T for truck An integer between 0 and 24 shows the hour the vehicle entered the lotc) An integer between 0 and 60 showing the minute the vehicle entered the lotd) An integer between 0 and 24 showing the hour the vehicle left the lote) An integer between 0 and 60 showing the minute the vehicle left the lotThis is a public lot. To encourage people to park for a short period of time, themanagement uses two different rates for each type of vehicle, as shown in thefollowing table:Vehicle First Rate Second RateCAR RM 0.00/hour first 3 hour RM 1.50/hour after 3 hourTRUCK RM 1.00/hour first 2 hour RM 2.30/hour after 2 hourBUS RM 2.00/hour for first hour RM 3.70/hour after first hourThe input data consist of a character and a set of four integers representing thetype of vehicle and…