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- Answer --import java.io.*; public class CallHelloPgm { public static void main(String args[]) { Process theProcess = null; BufferedReader inStream = null; System.out.println("CallHelloPgm.main() invoked"); // call the Hello class try { theProcess = Runtime.getRuntime().exec("java QIBMHello"); } catch(IOException e) { System.err.println("Error on exec() method"); e.printStackTrace(); } // read from the called program's standard output stream try { inStream = new BufferedReader( new InputStreamReader( theProcess.getInputStream() )); System.out.println(inStream.readLine()); } catch(IOException e) { System.err.println("Error on inStream.readLine()"); e.printStackTrace(); } } } .// Program describes two files // tells you which one is newer and which one is larger import java.nio.file.*; import java.nio.file.attribute.*; import java.io.IOException; public class DebugThirteen1 { public static void main(String[] args) { Path file1 = Paths.get("/root/sandbox/DebugDataOne1"); Path file2 = Paths.get("/root/sandbox/DebugDataOne2.txt"); try { BasicFileAttributes attr1 = Files.readAttributes(file1, BasicFileAttributes.class); System.out.println("File: " + file1getFileName()); System.out.println("Creation time " + attr1.creationTime()); System.out.println("Last modified time " + attr1lastModifiedTime()); System.out.println("Size " + attr1.size()); BasicFileAttributes attr2 = Files.readAttributes(file2, BasicFileAttributes.class); System.out.println("\nFile: " + file2.getFileName); System.out.println("Creation time " +…Which of the following are true? The Serializable interface has no methods. The Serializable method has been deprecated (fallen into disfavor) because it transmits data as a byte stream. All classes implement the Serializable interface by default. a and b are both true.
- in java Declare a FileOutputStream named fileStream and a PrintWriter named outFS. Ex: If the input is data.txt Ahmed, then data.txt contains: Ahmed purchased melons 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 import java.io.IOException; public class MelonDataProcessor { publicstaticvoidmain(String[] args) throwsIOException { Scannerscnr=newScanner(System.in); StringdataFileName; StringmelonOrder; /* Additional variable declarations go here */ dataFileName=scnr.next(); fileStream=newFileOutputStream(dataFileName); outFS=newPrintWriter(fileStream); melonOrder=scnr.next(); outFS.println(melonOrder+" purchased melons"); outFS.close(); } }here solution for part a pls give solution for part b, c, d import java.io.*;public class CopyFile { public static void main(String args[]) throws IOException { FileInputStream in = null; FileOutputStream out = null; try { in = new FileInputStream("input.txt"); out = new FileOutputStream("output.txt"); int c; while ((c = in.read()) != -1) { out.write(c); } }finally { if (in != null) { in.close(); } if (out != null) { out.close(); } } }I am having error E0020 and E0140 in C++. How can I fix it? /*Christopher JimenezCIS247CATM application24 November */ // bring in our libraries //Step #1#include <iostream>#include <conio.h>#include <string>#include <fstream> // read/write to files#include <ctime> // time(0)#include <iomanip> //setprecision()using namespace std; // prototypesvoid deposit(double* ptrBalance);void withdrawal(double* ptrBalance, float dailyLimit); // overloaded method - this version does not take withdrawal amountvoid withdrawal(double* ptrBalance, float dailyLimit, float amount); //overloaded method that takes withdrawal amount ///Entry point to the applicationint main(){ // create constant values -- cannot be changedconst int EXIT_VALUE = 5;const float DAILY_LIMIT = 400.0F;const string FILENAME = "Account.txt"; //create balance variabledouble balance = 0.0; // look for the starting balance; otherwise generate a ramdom starting balanceifstream iFile(FILENAME.c_str());…
- With your knowledge in file systems write a javaprograms the can be used to: Rename a file in a directoryin java Integer cradleQuantity and string friendName are read from input. A FileOutputStream named fileStream is declared and the file named cradle.txt is opened. Then, a PrintWriter named cradleWriter is declared and associated with the file. Write the following to the opened file: "Remember:" "* * * *" cradleQuantity, followed by " cradles for " and friendName Another "* * * *" End each output with a newline. Finally, close the file. Ex: If the input is 12 Dax, then cradle.txt contains: Remember: * * * * 12 cradles for Dax * * * * Note: Data written to a file may be lost if the file is not closed. 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 public class FileOutput { publicstaticvoidmain(String[] args) throwsIOException { Scannerscnr=newScanner(System.in); FileOutputStreamfileStream=null; PrintWritercradleWriter=null; intcradleQuantity; StringfriendName; cradleQuantity=scnr.nextInt(); friendName=scnr.next();…This C++ menu-driven program on LIBRARY MANAGEMENT SYSTEM has book and student class with data members like a book no, book name, author name. Books records are stored in a binary file. A student can issue a book and deposit it within 15 days. The student is allowed to issue only one book. Student Records are stored in the binary file. The administrator can add, modify or delete records.In this project, do not use graphics to keep the program simple.
- The getSelectedFile method of a JFileChooser object returns a File object. What exactly is this File object? A string containing a file name, a disk file, something else?in java Declare a FileOutputStream named outStream and a PrintWriter named dataFS. Ex: If the input is leek.txt 37.5, then leek.txt contains: 37.5 kilograms of leeks 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 import java.io.IOException; public class LeekFileOutput { publicstaticvoidmain(String[] args) throwsIOException { Scannerscnr=newScanner(System.in); StringleekFileName; doubleleekQuantity; /* Additional variable declarations go here */ leekFileName=scnr.next(); outStream=newFileOutputStream(leekFileName); dataFS=newPrintWriter(outStream); leekQuantity=scnr.nextDouble(); dataFS.println(leekQuantity+" kilograms of leeks"); dataFS.close(); } }C++ PLEASE!! Working on a project that is about word count with MapReduce, need a file manager class to take care of reading all txt file from a directory with giving path. The file manager class need to open the directory with the giving path which the user will input, then open the path and open all the txt files in that directory and break the text into single line and pass it to another class to do mapping. Please help with the file manager class!! Thank you!!