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Thread: newbie in programming i need help

  1. #1
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    Default newbie in programming i need help

    i need help guys about this program sales using import
    import java.awt.*;
    import javax.wing.*;
    import java.awt.event.*;
    that have JFrame, label, combo box, button..here is an example but i need a new one..
    import java.awt.*;
    import javax.swing.*;
    import java.awt.event.*;
    public class Sales extends JFrame implements ActionListener,ItemListener{
    	double totalPrice = 0.00;
    	int i=0;
    	JLabel lblProduct = new JLabel("Product Name :");
    	JLabel lblCart = new JLabel("Cart            :");
    	JLabel lblPrice = new JLabel("Price :");
    	String productList[] = {"Cake","Ice Cream", "Chocolate", "Sprite","Coke"};
    	double priceList[] = {100,200,300,400,500};
    	JButton btnAdd = new JButton("Add");
    	JButton btnCancel = new JButton("Cancel");
    	JButton btnRemove = new JButton("Remove");
    	JComboBox cmbProduct= new JComboBox(productList);
    	JComboBox cmbCart = new JComboBox();
    	JTextField txtPrice = new JTextField(20);
    	public Sales(){
    		cmbProduct.addItemListener(this);
    		btnCancel.addActionListener(this);
    		btnAdd.addActionListener(this);
    		btnRemove.addActionListener(this);
     
    		JPanel panel1 = new JPanel(new GridLayout(3,3));
    		panel1.add(lblProduct);
    		panel1.add(cmbProduct);
    		panel1.add(lblPrice);
    		panel1.add(txtPrice);
    		panel1.add(btnAdd);
    		panel1.add(btnCancel);
     
    		JPanel panel2 = new JPanel(new GridLayout(1,2));
    		panel2.add(lblCart);
    		panel2.add(cmbCart);
     
    		JPanel panel3 = new JPanel(new BorderLayout());
    		panel3.add(panel2,BorderLayout.PAGE_START);
    		panel3.add(btnRemove,BorderLayout.PAGE_END);
     
     
     
    		JPanel mainPanel = new JPanel(new BorderLayout());
    		mainPanel.add(panel1, BorderLayout.PAGE_START);
    		mainPanel.add(panel3,BorderLayout.PAGE_END);
     
    		setContentPane(mainPanel);
    		setSize(300,160);
    		setVisible(true);
    		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	}
    	public void itemStateChanged(ItemEvent e){
    		Object o = e.getSource();
    		if(o==cmbProduct){
    			i = cmbProduct.getSelectedIndex();
    			if(i==0){
    				txtPrice.setText(Double.toString(priceList[i]));
    			}else if(i==1){
    				txtPrice.setText(Double.toString(priceList[i]));
    			}else if(i==2){
    				txtPrice.setText(Double.toString(priceList[i]));
    			}else if(i==3){
    				txtPrice.setText(Double.toString(priceList[i]));
    			}else if(i==4){
    				txtPrice.setText(Double.toString(priceList[i]));
    			}else{
    				txtPrice.setText("");
    			}
    		}	
    	}
    	public void actionPerformed(ActionEvent e){
    		Object o = e.getSource();
    		if(o==btnAdd){
    			cmbCart.addItem(cmbProduct.getSelectedItem());
    //			totalPrice += Double.parseDouble(txtPrice.getText());
    		}else if(o==btnRemove){
    			cmbCart.removeItem(cmbCart.getSelectedItem());
    		}
    		else if(o==btnCancel){
    			txtPrice.setText(null);
    			cmbProduct.setSelectedItem(null);
    		}
    //		JOptionPane.showMessageDialog(null,Double.toString(totalPrice));
    	}
    	public static void main(String[] args){
    		Sales s = new Sales();
    	}
    }
    Last edited by helloworld922; October 6th, 2011 at 01:53 AM.


  2. #2
    Administrator copeg's Avatar
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    Default Re: newbie in programming i need help

    A) Please wrap your code in the code tags ([highlight=java]Your code here[/highlight]). B) Perhaps someone will come along that understands what you are asking, but I have no idea what your question is...please rephrase your question, and be precise and concise - it helps you to help us answer your question with information and a defined question.

  3. #3
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    Default Re: newbie in programming i need help

    thanks for replying my thread sir sir i need a new code..like in the cashier sir, product and their price and their vat..that have jframe, jlabel, jcombobox, jbutton... like this sir Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting

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