How can I show the max value of employee sales row when i click the max button

**opeboy** · 09-24-2012, 05:29 PM

Java Code:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;


class newframe extends JFrame{

	JButton submit = new JButton("Submit");
	
	public static void main(String[] args) {
		newframe frameTabel = new newframe();
		//frameTabel.setLayout(new GridLayout(1,2));
	}

	JTextField id = new JTextField(15);
	JTextField name = new JTextField(15);
	JTextField sales = new JTextField(15);
	DisplayPanel displayPanel = new DisplayPanel();


	newframe(){
		super("Monthly Sales");
		setSize(350,300);
		setLocation(500,280);
		
		JPanel bigPanel = new JPanel(new BorderLayout());
		bigPanel.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(),"Monthly Sale"));
		
		bigPanel.add(new InputPanel(), BorderLayout.NORTH);
		bigPanel.add(displayPanel);
		bigPanel.add(new ButtonPanel(), BorderLayout.SOUTH);

		submit.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				displayPanel.addFiedls();
			}
		});
		
	    getContentPane().add(bigPanel); 
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setVisible(true);
	
	}
	
	// the panels to input the data that will be in the NORTH region
	class InputPanel extends JPanel {
		
		InputPanel() {
			super(new GridLayout(4, 3));
			add(new JLabel("Employee Id:"));
			add(id);
			add(new JLabel("Employee Name:"));
			add(name);
			add(new JLabel("Employee Sales:"));
			add(sales);
			// center Sumbit button
			JPanel p = new JPanel(new GridLayout(1,2));
			p.add(new JLabel(""));
            p.add(submit);
			add(p);
		}
	}
	// the output fields which will be in the CENTER region
	class DisplayPanel extends JPanel {
		
		// the 3 headers
		String[] header = {"Employee ID", "Employee Name", "Employee Sales"};
		// the 3 X 5 labels to display
		JLabel[][] labels = new JLabel[5][3];
		// index which row I am at
		int row = 0;
		
		DisplayPanel() {
			// 6 rows and 3 columns
			super(new GridLayout(6, 3, 5, 5));
			// add the 3 header
			for(int i = 0; i < header.length; ++i)
				add(new JLabel(header[i]));
			// the other JLabel. Each row
			for(int i = 0; i < labels.length; ++i) {
				// each columns
				for(int j = 0; j < labels[i].length; ++j) {
					labels[i][j] = new JLabel("");
					labels[i][j].setOpaque(true);
					labels[i][j].setBackground(Color.WHITE);
					add(labels[i][j]);
				}
			}
		}
		// adds the new entry into the next one
		void addFiedls() {
			if(row == labels.length)
				return;              // sorry no more room
			labels[row][0].setText(id.getText());
			labels[row][1].setText(name.getText());
			labels[row][2].setText(sales.getText());
			++row;
		}
	}
	
	// the 3 buttons in the SOUTH region
	class ButtonPanel extends JPanel implements ActionListener {
        JButton min, max, exit;
        
		ButtonPanel() {
			min = new JButton("MIN");
			min.addActionListener(this);
			add(min);
			max = new JButton("MAX");
			max.addActionListener(this);
			add(max);
			exit = new JButton("EXIT");
			exit.addActionListener(this);
			add(exit);
		}
		
		public void actionPerformed(ActionEvent e) {
			Object o = e.getSource();
			
			
			if(o == min) {
				
				// the min button as been hit
		}
			else if(o == max) {
				
				
						
				// the max button has been hit
			}
			else {
				// the exit button has been hit
				System.exit(0);
			}
		}
	}
}