/*
 * FileAndConsoleTester shows elementary examples of how to do I/O
 * using text files and the console.
 *
 * Written: February 2002
 *
 * @author Jeff Ondich
 */

import java.io.*; 

class FileAndConsoleTester 
{
	public static void fileOutputTest() throws IOException
	{ 
		File outFile = new File( "C:/Windows/Desktop/outputfile.txt" ); 
		PrintWriter out = new PrintWriter( new BufferedWriter(new FileWriter(outFile)) );

		out.print( "Hello " ); 
		out.println( "world" ); 
		out.close(); 
    }

	public static void fileInputTest() throws IOException 
	{ 
		File inFile = new File( "C:/Windows/Desktop/words.txt" ); 
		BufferedReader in = new BufferedReader( new FileReader(inFile) ); 

		while( in.ready() )
		{
			String s = in.readLine();
			System.out.println( s.toUpperCase() );
		}

		in.close(); 
	} 

    public static void consoleRead() throws IOException, NumberFormatException
    { 
		BufferedReader in = new BufferedReader( new InputStreamReader(System.in) );

		System.out.print( "What's your name? " ); 
		String name = in.readLine();

		System.out.print( "What's your favorite number? " ); 
		String favoriteNumber = in.readLine();

		System.out.println( name + "'s favorite number is " + favoriteNumber + "." );

		double x = Double.parseDouble( favoriteNumber );
		double rootX = Math.sqrt( x );
		System.out.println( "The square root of " + name + "'s number is " + rootX );
	}

    public static void consoleRead2() throws IOException
    { 
		BufferedReader in = new BufferedReader( new InputStreamReader(System.in) );

		System.out.print( "What's your name? " ); 
		String name = in.readLine();

		System.out.print( "What's your favorite number? " ); 
		String favoriteNumber = in.readLine();

		System.out.println( name + "'s favorite number is " + favoriteNumber + "." );

		double x = 0;
		try
		{
			x = Double.parseDouble( favoriteNumber );
		}
		catch( NumberFormatException e )
		{
			System.out.println( favoriteNumber + " isn't really a number, now is it?" );
		}

		double rootX = Math.sqrt( x );
		System.out.println( "The square root of " + name + "'s number is " + rootX );
	}
}