/**
 * NestedIfStatementEx
 *
 * This program demonstrates if/else structures.
 *
 * @author Brad Rippe
 */
 
 import javax.swing.*; 
 import java.awt.*;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.ActionEvent;
 import java.awt.Container; 
 import javax.swing.UIManager;
 
 public class NestedIfStatementEx {
 
 	public static void main(String[] args) {
	
		/** DON'T BE CONCERNED WITH THIS SECTION **/		
		JFrame frame = new JFrame( "Nested If/else Demo" );
		
		try {
	        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    	} catch (Exception e) { }


    	frame.addWindowListener(new WindowAdapter() {
        	public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
	    });
		
		final JTextArea textArea = new JTextArea( 35, 35 );
		
		JScrollPane scrollPane = new JScrollPane( textArea );
		scrollPane.setPreferredSize( new Dimension( 600, 300 ) );
		frame.getContentPane().add( scrollPane, BorderLayout.CENTER );

		JButton codeButton = new JButton( "Show Code" );		
		codeButton.addActionListener( new ActionListener() {		
			public void actionPerformed( ActionEvent e ) {
				textArea.setFont( new Font("Courier", Font.BOLD, 16 ) );
				textArea.setText( "NESTED IF\\ELSE STATEMENTS\n\n" +
								  "if( intValue <= 50 ) {\n\n" +								  
								  "  if( intValue >= 40 ) {\n\n" +
								  "    tA.setText( \"You need to spend more time with reading the book!\" );\n\n" +
								  "  } else if( intValue >= 30 ) {\n\n" +
								  "    tA.setText( \"You really need to spend more time reading the book!\" );\n\n" +
								  "  } else {\n\n" +
								  "    tA.setText( \"Have you considered a programming course for review?\" );\n\n" +
								  "  }\n\n" +
								  "} else if( intValue <= 70 ) {\n\n" +
								  "  if( intValue == 70 ) {\n\n" +
								  "    tA.setText( \"Ahhhh! You just made it!\" );\n\n" +
								  "  } else {\n\n" +
								  "    tA.setText( \"Not quite passing yet!\" );\n\n" +
								  "  }\n\n" +
								  "} else {\n\n" +
								  "  if( intValue >= 90 ) {\n\n" +
								  "    tA.setText( \"Excellent!\" );\n\n" +
								  "  } else {\n\n" +
								  "    tA.setText( \"Very Well Done!\" );\n\n" +
								  "  }\n\n" +
								  "}" );
			}
		});
		
        frame.getContentPane().add( codeButton, BorderLayout.SOUTH );					
	    frame.pack();
      	frame.setVisible(true);
		
		testNestedIfElse( frame, textArea );
	}
	
	public static void testNestedIfElse(JFrame frame, JTextArea tA) {
		
		String input = JOptionPane.showInputDialog( frame, "How many points did you receive on the first assignment?\n" );
		
		int intValue = Integer.parseInt( input );
				
		/********* THIS IS THE SECTION OF INTEREST *********/
		if( intValue <= 50 ) {
				
			if( intValue >= 40 ) {
				tA.setText( "You need to spend more time with reading the book!" ); 
			} else if( intValue >= 30 ) {
				tA.setText( "You really need to spend more time reading the book!" );
			} else {
				tA.setText( "Have you considered a programming course for review?" );
			}
		
		} else if( intValue <= 70 ) {
			
			if( intValue == 70 ) {
				tA.setText( "Ahhhh! You just made it!" );
			} else {
				tA.setText( "Not quite passing yet!" );
			}
			
		} else {
			
			if( intValue >= 90 ) {
				tA.setText( "Excellent!" );
			} else {
				tA.setText( "Very Well Done!" );
			}
		}
		
		/*********** END SECTION ************/
	}
	
}