The ObjectOutputStream class is used to serialize an Object. The following SerializeDemo program instantiates an Employee object and serializes it to a file. Complete the code. Write codes where asked with appropriate try catch block class SDemo { main method [ //Create an Employee object //set a name for this employee //set employee number to 1010 //create an object of file output stream //create an object of the object output stream //write Employee info to this object of output stream //close the out stream //close the file //print statement

The ObjectOutputStream class is used to serialize an Object. The following SerializeDemo program instantiates an Employee object and serializes it to a file. Complete the code. Write codes where asked with appropriate try catch block class SDemo { main method [ //Create an Employee object //set a name for this employee //set employee number to 1010 //create an object of file output stream //create an object of the object output stream //write Employee info to this object of output stream //close the out stream //close the file //print statement

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter12: Exception Handling

Section: Chapter Questions

Problem 7PE

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/** * The file path that is IOManager read and write an object from. This *file location will is used by @link #read()} and {@link #write(Object)}. * This method may not return a null value. If the path is not set this should return an empty string. * @param path The file location to be read and written to } # *1 public string getPath(); otFoundException, IllegalArgumentE; /* * Reads the object saved in the file located at the path returned by {@link #getPatF * @return An object saved in the file. 3* @throws IOException when something goes wrong in the IO process @throws ClassNotFoundException If the object located at the is a class that is not * by this version of your software @throws Illegal state Exception If the file path has not been set yet * */ public T read() throws IOException, ClassNotFoundException, IllegalStateException; /** * Writes and object to saved at the file located at the path returned by {@link #getPath( @param object The object saved in the file * @throws…
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Instead of making a class Serializable, the developer can write each of the member variables to a file. This process takes longer and requires more code. True False
If wrong answer this time will downvote it Create a class with a static main that tests the ability to resolve and print a Path: • Create an instance of a FileSystem class. • Resolve an instance of a Path interface from a directory path and filename. • Print the constructed Path with System.out.println() method. 2. Create a class with a static main that tests the ability to resolve and print a Path: • Create an array of Path class. • Instantiate instances of Path with absolute and relative paths. • Print the constructed elements of the array of Path class with System.out.println() method. 3. Create a class to test serialisation class that implements serializable, it should implement the following: • A static void method that serialises an object. • A static void method that deserializes an object. • A static main method that tests the two by moving an object from one to the other
file operator code 1 // The FileOperator class that includes methods for file input and output 2 // Maham Hameed 3 import java.io.*; 4 public class FileOperator 5 { 6 // instance variables 7 private File m_file; 8 9 // constructor 10 // Do not make any changes to this method! 11 public FileOperator() 12 { 13 String fileName = "employeeData.txt"; 14 m_file = new File(fileName); 15 } 16 17 // This method writes an array of Employees into a physical file. 18 // Each line is in this format: "S-Optimus Prime-Computer Science-$1200" 19 // "S" represents StudentWorker ("F" represents Faculty) 20 public void writeFile(Employee[] employees) 21 { 22 // TODO: implement this method 23 } 24 }
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Write a program that contains topics Vector Template Exception Handling File Stream Friend function and Friend class e 11:48
Assessment Description Honors Students: Complete this assignment according to the directions provided in the "Honors Addendum," located in Class Resources. This activity has multiple parts. All parts must be completed prior to documentation submission. Part 1: Reading and Writing Text Files. In this activity, you will learn how to read and write text files using non buffered and buffered File I/O classes, then learn how to parse a String into tokens using the String split() method, and finally, how to handle exceptions using various approaches. Part 2: Reading and Writing JSON Files. In this activity, you will learn how to read, write, and serialize JSON files to and from Java Objects. Refer to the instructions within "Activity 4 Guide" to complete the assignment. APA style is not required, but solid academic writing is expected. This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful…
If an object cannot be found, it is generally better to throw an exception than return null. True False