Java Serialization and File Handling

What is Java serialization?

• It is the process of converting an object into a string of characters

• It is the process of converting an object into a stream of bytes

• It is the process of converting an object into a stream of integers

• It is the process of converting a stream of bytes into an object

How is Java serialization achieved?

• By using the java.io.Serialization class

• By calling the serialize() method

• By implementing the java.io.Serializable interface

• By setting the serialization flag to true

What is the purpose of using Fileinputstream in Java?

• To delete a file

• To create a new file

• To read data from a file

• To write data to a file

How do you create a Fileinputstream object in Java?

• FileInputStream input = new FileInputStream(file.txt);

• FileInputStream input = new FileInputStream(file);

• FileInputStream input = new FileInputStream("file.txt");

• FileInputStream input = new FileInputStream();

What is the purpose of using Fileoutputstream in Java?

• To create a new file

• To write data to a file

• To read data from a file

• To delete a file

How do you create a Fileoutputstream object in Java?

• FileOutputStream.open("filename.txt")

• FileOutputStream.write("filename.txt")

• FileOutputStream.create("filename.txt")

• new FileOutputStream("filename.txt")

How do you create a new file using the File class in Java?

• file.addNewFile()

• file.createFile()

• file.makeNewFile()

• file.createNewFile()

What is the difference between FileWriter and Fileoutputstream in Java?

• FileWriter is used to read bytes from a file, while FileOutputStream is used to write characters to a file.

• FileWriter and FileOutputStream are not related to file handling in Java.

• FileWriter is used to write characters to a file, while FileOutputStream is used to write bytes to a file.

• FileWriter and FileOutputStream are used interchangeably in Java.

How do you read data from a file using Fileinputstream in Java?

• Create a FileInputStream object and use its read() method to read the data from the file.

• Open the file in a text editor and manually copy the data

• Use a PrintWriter object to read the data from the file

• Use a Scanner object to read the data from the file

How do you write data to a file using Fileoutputstream in Java?

• Use BufferedWriter to write data to the file

• Use PrintWriter to write data to the file

• Create an instance of FileOutputStream and use its write() method to write data to the file.

• Use FileReader to write data to the file