/**
 *	Decisions.java
 *	
 *	@author Jeff Ondich 
 *	
 *	This program illustrates if/else statements.
 *
 *	1. Compile the class and run main.
 *	
 *	2. Read the code carefully and try various integers to make all of the
 *	different messages get printed.
 *	
 *	3. In the bottles-of-beer section, what happens if you remove the curly braces?
 *	(Try removing the curly braces, compiling, and then running it with some
 *	number other than 99 to see the problem.)
 *	
 *	4. if/else statements are not especially difficult to understand, but
 *	there are several important details that you need to know.  Make sure to
 *	study this code carefully enough that you are confident you understand
 *	the roles of if, else, else if, &&, ||, and {}.
 */


import javabook.*;

class Decisions
{
    public static void main( String[] args )
    {
		// Get ready to talk to the us.
    	MainWindow mw = new MainWindow();
    	mw.setVisible( true );
    	mw.toFront();
    	
    	OutputBox out = new OutputBox( mw );
    	out.setVisible( true );
    	out.toFront();

		InputBox in = new InputBox( mw );

		// Ask for a number.
		int j = in.getInteger( "Number, please:" );


		// A simple "if-else" statement.
		if( j % 2 == 0 )
			out.printLine( j + " is even." );
		else
			out.printLine( j + " is odd." );
			

		// You can make a stack of if/else if/else if/... to choose among
		// many cases.
		if( j == 1 )
			out.printLine( j + " is the loneliest number." );
		else if( j == 2 )	
			out.printLine( j + " is dualicious." );
		else if( j == 1729 )	
			out.printLine( j + " is the lowest integer that can be written of the sum of two cubes in two different ways." );
		else
			out.printLine( j + " seems so ordinary." );


		// You don't need an else if you don't want it.
		if( j < 0 )
			out.printLine( j + " is negative." );


		// You can make more complicated comparisons using && for "and"
		// and || for "or".
		if( j > 83  &&  j < 89 )
			out.printLine( j + " is so pleasingly close to 86." );
	

		// If the "body" of an if statement (the thing to do if the condition
		// is met) is more than one line, you need to put curly braces around it.
		if( j == 99 )
		{
			out.printLine( j + " bottles of beer on the wall" );
			out.printLine( j + " bottles of beer" );
			out.printLine( "take one down, pass it around" );
			out.printLine( (j-1) + " bottles of beer on the wall" );
		}
    }
}