Exercises Java with Examples-
Practice Exercises Java 4,5 5 302940

Convert a text file to uppercase - Practice Exercises Java


Lesson 8:

File management


Exercise 8.16:

Convert a text file to uppercase


Objetive:

Write a program to read a text file and dump its content to another file, changing the lowercase letters to uppercase.

You must deliver only the ".cs" file, with you name in a comment.


Source Code:


package FileLowerCaseToUpperCase;
import java.util.*;

public class Main
{
	public static void main(String[] args)
	{
		System.out.print("Enter name file: ");
		String fileName = new Scanner(System.in).nextLine();

		if ((new java.io.File(fileName)).isFile())
		{
			java.io.FileReader fileRw = new java.io.FileReader(fileName);
		java.io.BufferedReader fileRwBufferedReader = new java.io.BufferedReader(fileRw);
			java.io.FileWriter fileWr = new java.io.FileWriter(fileName + ".dat");
			String line;
			do
			{
				line = fileRwBufferedReader.readLine();
				if (line != null)
				{
					fileWr.write(line.toUpperCase() + System.lineSeparator());
				}
			} while (line != null);
			fileRw.close();
			fileWr.close();
		}
	}
}
Exercisey 8.16

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