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Revise the class Pet, as shown in Listing 6.1 of Chapter 6, so that it is serializable. Write a
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- Write a java program in a single file that: Main: Creates 10 random doubles, all between 1 and 11, Calls a method that writes 10 random doubles to a text file, one number per line. Calls a method that reads the text file and displays all the doubles and their sum accurate to two decimal places.arrow_forwardWhat is the distinction between the static and extern storage classes? Give appropriate examples to back up your response.arrow_forwardWrite a program that will sequentially list numbers from 0 to 50, changing its color depending on the size of the number, for example, for numbers from 0 to 10 it will be green, 11 to 22 red and 23 to 35 blue, etc. Limit the screen output speed to about 1 character / second. In order to change colors, you must first use the GetStdHandle function to get a handle to the console, which is similar to getting a file pointer before working with a file. It is done e.g. as follows: HANDLE hConsole; hConsole = GetStdHandle (STD_OUTPUT_HANDLE); The above functions are defined in windows.h Tip 2: Write a utility to find out the colors corresponding to all combinations from 0 to 255. Tip 3: Instructions and sample program for working with time. C language plz with explanation of codes. thanksarrow_forward
- Write a program in a single file that: Main: Creates 10 random doubles, all between 1 and 11, Calls a method that writes 10 random doubles to a text file, one number per line. Calls a method that reads the text file and displays all the doubles and their sum accurate to two decimal places. SAMPLE OUTPUT 10.62691196041722.7377903389094555.4279257388651281.37420580654725091.18587002624988364.1803912764852284.9109699989306755.7108582343439587.7908570073730523.1806714736219543 The total is 47.13arrow_forwardfrom Big Java 6th. Edition. Ch.11 P11.12: the capacitor is represented by the equation v(t) = B(1 - e-t/(RC)) Suppose the parameters of the electric circuit are B = 12 volts, R = 500 Ω, and C = 0.25 μF. Consequently v(t) = 12(1 – e-0.008t) where t has units of μs. Read a file params.txt containing the values for B, R, C, and the starting and ending values for t. Write a file rc.txt of values for the time t and the corresponding capacitor voltage v(t), where t goes from the given starting value to the given ending value in 100 steps. In our example, if t goes from 0 to 1000 μs, the twelfth entry in the output file would be: 110.00 7.02261 Make sure that your program catches the FileNotFoundException that can occur if your input file params.txt cannot be found. Your program should catch this exception, and then prompt the user for a file name again until a valid file is entered. I hbelieve I have everything needed, but I cannot figure out how to write in the…arrow_forwardWrite a java program that read unknown number of records from the file shown below named “ people.txt ” and print on screen the name of the person followed by his weight class according to the following table .arrow_forward
- As in Self-Test Exercise 5, write some code that will create a stream namedoutStream that is a member of the class PrintWriter, and that connects thisstream to a text file named sam so that your program can send output to the file.This time, however, do it in such a way that, if the file sam already exists, the oldcontents of sam will not be lost, and the program output will be written after theold contents of the file.arrow_forwardUsing JAVA, write a program that reds a file containing two columns of floating-point numbers. Prompt the user for a file name. Print the average of each column on screen as well as a separate file.arrow_forwardUsing Java, Write a program that reads an input file and writes an output file inserted using try and catch blocks as follows: input Discrete MathOperating SystemData StructureAnalysis of AlgorithmsMath 302CS 301CS 287CS 350 output 1 Discrete Math2 Operating System3 Data Structure4 Analysis of Algorithms5 Math 3026 CS 3017 CS 2878 CS 350 1. Print your output to your console first. (Use the File & Scanner classes.)2. If it works, print your output to your output file.( Use the FileOutputStream & PrintWriter classes.)arrow_forward
- Exercise 2:Write a Java program that allows the user to specify a file name on the command line and prints the number of characters, words, lines, average number of words per line, and average number of characters per word in that file. If the user does not specify any file name, then prompt the user for the name.arrow_forwardThe history teacher at your school needs help in grading a True/False test. The students’ IDs and test answers are stored in a file. The first entry in the file contains answers to the test in the form:TFFTFFTTTTFFTFTFTFTTEvery other entry in the file is the student ID, followed by a blank, followed by the student’s responses. For example, the entry:ABC54301 TFTFTFTT TFTFTFFTTFTindicates that the student ID is ABC54301 and the answer to question 1 is True, the answer to question 2 is False, and so on. This student did not answer question 9. The exam has 20 questions, and the class has more than 150 students. Each correct answer is awarded two points, each wrong answer gets one point deducted, and no answer gets zero points. Write a program that processes the test data. The output should be the student’s ID, followed by the answers, followed by the test score, followed by the test grade. Assume the following grade scale:90%–100%, A; 80%–89.99%, B; 70%–79.99%, C; 60%–69.99%, D; and…arrow_forwardWrite a program that will read the file text.txt which is provided and the encryptedmessage in there. Please write back the decrypted message into the output.txt file.When you see the message in the output.txt file, you need to submit the java codefile. You need to use Rot13 class for decrypting the message. Do not need to submit in the output.txt file. file example: public class FileExample { public static void main(String[]args){ try {//create file object for input.txtFile in_file = new File("src/input.txt");//create file object for output.txtFile out_file = new File("src/output.txt"); //read the input.txt file with ScannerScanner read = new Scanner(in_file);//write the output.txt file with PrintWriterPrintWriter w = new PrintWriter(out_file); while(read.hasNextLine()){w.write(read.nextLine());} //don't forget to closew.close(); // while(scan.hasNext()){// System.out.println(scan.next());// } }catch(Exception ex){ex.getStackTrace();}arrow_forward
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