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

C to C# Sharp converter - Practice Exercises Java


Lesson 8:

File management


Exercise 8.27:

C to C# Sharp converter


Objetive:

Create a program to convert simple C programs, such as the following one, to C# Sharp:

Note: the resulting program must compile correctly. Test it with other similar C programs.


Source Code:


import java.util.*;
public class Main
{
	public static void main(String[] args)
	{
		System.out.print("Name of file: ");
		String name = new Scanner(System.in).nextLine();
		if (!(new java.io.File(name)).isFile())
		{
			System.out.println("Not found!");
		}
		else
		{
			try
			{
				java.io.InputStreamReader fileC = new java.io.InputStreamReader(name);
				java.io.OutputStreamWriter fileCSharp = new java.io.OutputStreamWriter(name + ".cp");
				String line;
				do
				{
					line = fileC.ReadLine();
					if (line != null)
					{
						line = line.replace("#include ", "using System;/npublic class Example{");

						line = line.replace("int main()", "public static void Main()");

						if (line.contains("scanf("))
						{
							line = line.replace("scanf(\"%d\", &", "");
							line = line.replace(");", " = Convert.ToInt32(Console.ReadLine());");
						}
						line = line.replace("printf", "Console.Write");
						line = line.replace("%d", "{0}");
					}
				} while (line != null);
			}
			catch (RuntimeException e)
			{
				System.out.println("Error, " + e.getMessage());
			}
		}
	}
}
Exercisey 8.27

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