layout manager problem

[cozsmin]

hello,

my program is a simple banking application, i need it for my resumee, but i have a little problem
i got stuck trying to maek some TextField -s visible , it seems that setting the layout ( null or SpringLayout ) even if i setVisible ( true ) , the text fields will not become visible pls help

this is my code
if u do not want to read all the code i wrote again at the end just the part that i am iterrested about

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

class TellerWindow extends JFrame{

	public static void main (String []r ) {

		new TellerWindow();
	}

	Graphics g;

	Customer[] customer;

	Button [] operateb = {new Button("Show customer information"),new Button ("Create a new customer"),new Button("Change customer data")};

	Panel panel[] = { new Panel(),new Panel(),new Panel(),new Panel()};

	TextField text[][] = new TextField [3][];

	ActionListener b1 = new ActionListener() {
		public void actionPerformed ( ActionEvent e) {
            if(e.getSource() == operateb[0]){
				panel[2].setVisible(false);
				panel[3].setVisible(false);
				panel[1].setVisible(true);
	    			g = panel[1].getGraphics();
    			drawp1();
            }
            
		}
	};
	
	ActionListener b2 = new ActionListener() {
		public void actionPerformed ( ActionEvent e) {
            if(e.getSource() == operateb[1]){
				panel[1].setVisible(false);
				panel[3].setVisible(false);
				panel[2].setVisible(true);
	 			g = panel[2].getGraphics();
    			drawp2();
            }
            
		}
	};

	{

		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setLayout(null);
		setLayout(new FlowLayout());
		
		setSize(400,600);
		setLocation(30,20);
   		setLayout(null);
		setVisible(true);

		for( int i =1;i <4;i++) {
			panel[i].setSize(400,400);
			panel[i].setVisible(false);
			panel[i].setLocation(0,200);
		}

		panel[0].setSize(400,200);
		panel[0].setLocation(0,0);
 	//	panel[0].setBackground(Color.black);
		panel[0].setVisible(true);

		for(int i = 0 ; i<4; i++) {
			panel[i].setLayout(new SpringLayout ());
            add(panel[i]);
		}
		
		panel[0].setLayout(null);
		panel[1].setLayout(null);

		for (int i = 0 ;i <3; ++i) {
			operateb[i].setSize(175,25);
			
			operateb[i].setVisible(true);
			panel[0].add(operateb[i]);operateb[i].setLocation(113,(i+1)*40-20);
		}

		text[0] = new TextField [10];

		for (int i=0; i < 10; i++) {
			text[0][i] = new TextField ();  
		
            text[0][i].setColumns(40);
			text[0][i].setLocation(10,(i + 1) *35);
            text[0][i].setVisible(true);
        	panel[1].add(text[0][i]);
		}

		text[0][0].setText("Customer ID :");
		text[0][1].setText("Customer Name :");
		text[0][2].setText("Customer date of birth:");
		text[0][3].setText("Customer Address:");
		text[0][4].setText("Customer City:");
		text[0][5].setText("Customer Street:");
		text[0][6].setText("Customer phone :");
		text[0][7].setText("Customer email:");
		text[0][8].setText("Customer zip:");
		
		text[1] = new TextField [10];
		text[2] = new TextField [10];
		
		for (int i = 0 ;i <10 ; i++) {
			text[1][i] = new TextField ();
			text[1][i].setText(text[0][i].getText());
			text[2][i] = new TextField ();
        	
        	text[1][i].setLocation(10,(i+1)*35);
        	text[2][i].setLocation(10,(i+1)*35);
        	text[1][i].setVisible(true);
			text[2][i].setVisible(true);
        	text[2][i].setColumns(40);
        	
			panel[2].add(text[1][i]);
        	panel[3].add(text[2][i]);

		}
		
		for (int i = 0 ; i<10; i ++ )
			text[0][i].setEditable(false);
		
		operateb[0].addActionListener(b1);
		operateb[1].addActionListener(b2);
//		operateb[2].addActionListener(b3);
	
		
		
	}



/*	void createCustomer () {
		for (int i ; i<20; i++ )
			if(customer [i] == null) {
				customer[i] = new Customer ();
				customer[i].setID(i + 1);
				break;
			}
	}
*/
	private void createCustomer ( String fname, String lname, java.util.Date DOB) {

		for (int i = 0 ; i < 20; i++ )
			if(customer [i] == null) {
				customer[i] = new Customer (fname, lname, DOB,i+1);
				break;
			}
	}
	
	private void drawp1 () {
		
		for(int i =0;i <10; ++i)
			g.drawString(text[0][i].getText(),20,(i+1)*35);
	}
	
	private void drawp2 () {
		
		for(int i = 0 ; i <10 ; i++)
		//	g.drawString(text[1][i].getText(),40,(i+1)*35 - 15); 
	}
}

text [2] [i] from panel [1] is invisible

	for(int i = 0 ; i<4; i++) {
			panel[i].setLayout(new SpringLayout ());
            add(panel[i]);
		}

                //   and 

	text[1] = new TextField [10];
		text[2] = new TextField [10];
		
		for (int i = 0 ;i <10 ; i++) {
			text[1][i] = new TextField ();
			text[1][i].setText(text[0][i].getText());
			text[2][i] = new TextField ();
        	
        	text[1][i].setLocation(10,(i+1)*35);
        	text[2][i].setLocation(10,(i+1)*35);
        	text[1][i].setVisible(true);
			text[2][i].setVisible(true);
        	text[2][i].setColumns(40);
        	
			panel[2].add(text[1][i]);
        	panel[3].add(text[2][i]);

		}

[JosAH]

hello,

my program is a simple banking application, i need it for my resumee, but i have a little problem
i got stuck trying to maek some TextField -s visible , it seems that setting the layout ( null or SpringLayout ) even if i setVisible ( true ) , the text fields will not become visible pls help

I didn't read all that code; is the problem *some* of those text fields or are *all*
of the text fields invisible?

btw never set a LayoutManager to null.

kind regards,

Jos