Why controls and labels don't go to their respective places?

Question

i wonder why the controls and labels don't go to their respective setLocations, they just keep stacking theirselves at the top....
don't bother the whole code, it still not yet finish.
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class Fonts2 extends Applet implements ItemListener
Label ds, bc, fset, col, st, sz, xyz, opt, qua, totcha, cas;
CheckboxGroup g1 = new CheckboxGroup();
CheckboxGroup g2 = new CheckboxGroup();
CheckboxGroup g3 = new CheckboxGroup();
CheckboxGroup g4 = new CheckboxGroup();
Checkbox blue,red,green, pink, yellow, magenta, style1, style2, style3, size1, size2, size3;
Font plain, bold, italic, a1;
String fs="Arial";
public void init(){
ds = new Label("Display Settings");
bc = new Label("Background Color");
fset = new Label("Font settings");
col = new Label("Color");
st = new Label("Style");
sz = new Label("Size");
plain = new Font(fs,Font.PLAIN,12);
bold = new Font(fs,Font.BOLD,12);
italic = new Font(fs,Font.ITALIC,12);
blue = new Checkbox("blue",false, g3);
red = new Checkbox("red", false, g3);
green = new Checkbox("green", false, g3);
pink = new Checkbox("pink",false, g4);
yellow = new Checkbox("yellow",false, g4);
magenta = new Checkbox("magenta",false, g4);
style1 = new Checkbox("plain", false, g1);
style2 = new Checkbox("bold", false, g1);
style3 = new Checkbox("italic", false, g1);
size1 = new Checkbox("14", false, g2);
size2 = new Checkbox("16", false, g2);
size3 = new Checkbox("18", false, g2);
ds.setLocation(10,10); ds.setSize(100,20);
bc.setLocation(20,30); bc.setSize(120,20);
blue.setLocation(150,30); blue.setSize(50,20);
red.setLocation(210,30); red.setSize(50,20);
green.setLocation(270,30); green.setSize(50,20);
fset.setLocation(20,50); fset.setSize(120,20);
col.setLocation(80,70); col.setSize(50,20);
st.setLocation(180,70); st.setSize(50,20);
sz.setLocation(280,70); sz.setSize(50,20);
pink.setLocation(75,90); pink.setSize(50,20);
yellow.setLocation(75,110); yellow.setSize(50,20);
magenta.setLocation(75,130); magenta.setSize(50,20);
  style1.setLocation(175,90); style1.setSize(50,20);
  style2.setLocation(175,110); style2.setSize(50,20);
  style3.setLocation(175,130); style3.setSize(50,20);
  size1.setLocation(275,90); size1.setSize(50,20);
  size2.setLocation(275,110); size2.setSize(50,20);
  size3.setLocation(275,130); size3.setSize(50,20);
add(ds); add(bc); add(fset); add(col); add(st); add(sz);
add(blue); add(red); add(green);
add(pink); add(yellow); add(magenta);
add(style1); add(style2); add(style3);
add(size1); add(size2); add(size3);
blue.addItemListener(this);
red.addItemListener(this);
green.addItemListener(this);
pink.addItemListener(this);
yellow.addItemListener(this);
magenta.addItemListener(this);
style1.addItemListener(this);
style2.addItemListener(this);
style3.addItemListener(this);
size1.addItemListener(this);
size2.addItemListener(this);
size3.addItemListener(this);
public void itemStateChanged(ItemEvent e){
if(blue.getState()==true){setBackground(Color.blue); repaint();}
if(red.getState()==true){setBackground(Color.red); repaint();}
if(green.getState()==true){setBackground(Color.green); repaint();}
if(pink.getState()==true){style1.setForeground(Color.pink); repaint();}
if(yellow.getState()==true){style1.setForeground(Color.yellow); repaint();}
if(magenta.getState()==true){style1.setForeground(Color.magenta); repaint();}
if(style1.getState()==true){style1.setFont(plain);}
if(style2.getState()==true){style1.setFont(bold);}
if(style3.getState()==true){style1.setFont(italic);}
if((style1.getState()==true)&&(size1.getState()==true)){a1 = new Font("Arial", Font.PLAIN, 14); style1.setFont(a1);}
if((style1.getState()==true)&&(size2.getState()==true)){a1 = new Font("Arial", Font.PLAIN, 16); style1.setFont(a1);}
if((style1.getState()==true)&&(size3.getState()==true)){a1 = new Font("Arial", Font.PLAIN, 18); style1.setFont(a1);}
if((style2.getState()==true)&&(size1.getState()==true)){a1 = new Font("Arial", Font.BOLD, 14); style1.setFont(a1);}
if((style2.getState()==true)&&(size2.getState()==true)){a1 = new Font("Arial", Font.BOLD, 16); style1.setFont(a1);}
if((style2.getState()==true)&&(size3.getState()==true)){a1 = new Font("Arial", Font.BOLD, 18); style1.setFont(a1);}
if((style3.getState()==true)&&(size1.getState()==true)){a1 = new Font("Arial", Font.ITALIC, 14); style1.setFont(a1);}
if((style3.getState()==true)&&(size2.getState()==true)){a1 = new Font("Arial", Font.ITALIC, 16); style1.setFont(a1);}
if((style3.getState()==true)&&(size3.getState()==true)){a1 = new Font("Arial", Font.ITALIC, 18); style1.setFont(a1);}
}

Answer 1

just add :
setLayout(null);at the start of init() method.
Thanks!