Examine the following file processing program. import java.io.File; import java.

Question

Examine the following file processing program.

import java.io.File;

import java.io.PrintWriter;

public class TextFile {

    public static void main(String[] args) throws Exception {

      // associate a file with a file object

      File fileExample = new File("data.txt");

      // associate the file with a PrintWriter object

      PrintWriter pwInput = new PrintWriter(fileExample);

      // write string data to the file

      pwInput.println("Sammy Student");

      // write string data to the file

      pwInput.println("Engineer");

      // write a double - precision number to the file

      pwInput.println(35.50);

      // write a Boolean value to the file

      pwInput.print(true);

      // de - allocate the PrintWriter object memory

      pwInput.close();

      // inform user that the file has been created

      System.out.println("The data file has been created!");  

    }

}

          Concerning the aforementioned program code, select the correct answer.

(1)     The pWriter object is associated with the file named data.txt .

          (a)     True     (b)     False

(2)     The println() method is used to write different data types to the file.

          (a)     True     (b)     False

(3)     throws Exception is necessary to include in the program to prevent an unhandled exception type FileNotFoundException.

          (a)     True     (b)     False

(4)     When the program is executed, only three lines of data are written to the text file.

          (a)     True     (b)     False

(5)     The statement pwInput.close(); is executed before the data is written to    the file.

          (a)     True     (b)     False

import java.io.File;

import java.io.PrintWriter;

public class TextFile {

    public static void main(String[] args) throws Exception {

      // associate a file with a file object

      File fileExample = new File("data.txt");

      // associate the file with a PrintWriter object

      PrintWriter pwInput = new PrintWriter(fileExample);

      // write string data to the file

      pwInput.println("Sammy Student");

      // write string data to the file

      pwInput.println("Engineer");

      // write a double - precision number to the file

      pwInput.println(35.50);

      // write a Boolean value to the file

      pwInput.print(true);

      // de - allocate the PrintWriter object memory

      pwInput.close();

      // inform user that the file has been created

      System.out.println("The data file has been created!");  

    }

}

Explanation / Answer

1) The pWriter object is associated with the file named data.txt . -> TRUE

Explanation : TRUE, Because into the data.txt file data would be write so that's why the pWriter is associated with the data.txt file.

2) The println() method is used to write different data types to the file. -> TRUE

Explanation : TRUE, while the user enter the String, int,double,char, boolean etc. like this data types data would be enter into the file's by using the println()

3) throws Exception is necessary to include in the program to prevent an unhandled exception type FileNotFoundException -> TRUE

Explanation : TRUE, while user want's write or read data into the file. sometime user will not find the correct file details at this time user will get the FileNotFoundException so for handle that Exception we use either try catch blocks or throws Exception.

4)  When the program is executed, only three lines of data are written to the text file. ->TRUE

Explanation : TRUE, Expect Boolean other data would be written into the file.

5) The statement pwInput.close(); is executed before the data is written to    the file.

Explanation : TRUE, after the file succcessfully read or write would be completed then that close() will be performed.

Thanks...

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