See the problem with the GridbagLayout

Question

See the out put i want small button but it is going wrong.
there are two program.
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
class frame1 extends JFrame
JMenu m1;
JMenuItem m13,m14,m12;
JMenuBar mbr;
CardLayout cardLo;     
JPanel panCon,jp;
StaticReservation stp;
KeyStroke k1;     
public frame1()
     super("Counselling System");
setExtendedState(JFrame.ICONIFIED);
     Container c=getContentPane();
     cardLo=new CardLayout();
     panCon=new JPanel(cardLo);
     stp=new StaticReservation();     
     panCon.add(stp,"StaticReservation");
     mbr=new JMenuBar();
setJMenuBar(mbr);
m1=new JMenu("Office");
m1.setMnemonic(KeyEvent.VK_O);
mbr.add(m1);
m12=new JMenuItem("Static Reservation ");
     m12.setMnemonic(KeyEvent.VK_S);
     k1=KeyStroke.getKeyStroke(KeyEvent.VK_S,8);
     m12.setAccelerator(k1);
     m1.add(m12);
m14=new JMenuItem("Exit ");
     m14.setMnemonic(KeyEvent.VK_X);
     k1=KeyStroke.getKeyStroke(KeyEvent.VK_X,Event.CTRL_MASK);
     m14.setAccelerator(k1);
     m1.add(m14);
m14.addActionListener(new Myhandler(this));
m12.addActionListener(new Myhandler(this));
c.add(panCon);
public class Myhandler implements ActionListener
frame1 f1;
public Myhandler(frame1 t1)
this.f1=t1;
public void actionPerformed(ActionEvent ae)
     if(ae.getSource()==m14)
System.exit(0);
     if(ae.getSource()==m13)          
          cardLo.show(panCon,"CollegeDetailsPane");
     if(ae.getSource()==m12)          
          cardLo.show(panCon,"StaticReservation");
public class menu2
public static void main(String ax[])throws Exception
frame1 f1=new frame1();
f1.setExtendedState(JFrame.MAXIMIZED_BOTH);
f1.setVisible(true);
f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
/* double h=f1.getHeight();     
double w=f1.getWidth();     
System.out.println(" ---------- "+h);
System.out.println(" ---------- "+w); */
import javax.swing.*;
import java.awt.*;
public class StaticReservation extends JPanel
JLabel lbca,lbcb,lbcc,lbcd,lsc,lst,lwr;
JTextField tbca,tbcb,tbcc,tbcd,tsc,tst,twr;
GridBagLayout gbl;
GridBagConstraints gbc;
JPanel jpbc,jpsc,jpwr,jpbutton;
JButton b1,b2,b3;
StaticReservation()
     setLayout(new GridLayout(4,1));
gbl=new GridBagLayout();      
     gbc=new GridBagConstraints();
     jpbc=new JPanel(gbl);
     jpbc.setBorder(BorderFactory.createTitledBorder("Backword Cast"));
     jpbc.setBounds(200,200,500,500);
     gbc.insets=new Insets(1,1,1,1);
gbc.weightx=0.01;
     gbc.weighty=0.01;
//Lable's & Textfiled'sfor BC
     gbc.gridx=0;
     gbc.gridy=0;
     lbca=new JLabel(" BC - A ");
     gbl.setConstraints(lbca,gbc);
     jpbc.add(lbca);
     gbc.gridx=0;
     gbc.gridy=1;
     lbcb=new JLabel(" BC - B ");
     gbl.setConstraints(lbcb,gbc);
     jpbc.add(lbcb);
     gbc.gridx=0;
     gbc.gridy=2;
     lbcc=new JLabel(" BC - C ");
     gbl.setConstraints(lbcc,gbc);
     jpbc.add(lbcc);
     gbc.gridx=0;
     gbc.gridy=3;
     lbcd=new JLabel(" BC - D ");
     gbl.setConstraints(lbcd,gbc);
     jpbc.add(lbcd);
gbc.gridx=1;
     gbc.gridy=0;
     gbc.anchor=GridBagConstraints.WEST;
tbca=new JTextField(15);
     gbl.setConstraints(tbca,gbc);
     jpbc.add(tbca);
     gbc.gridx=1;
     gbc.gridy=1;
     gbc.anchor=GridBagConstraints.WEST;
tbcb=new JTextField(15);
     gbl.setConstraints(tbcb,gbc);
     jpbc.add(tbcb);
     gbc.gridx=1;
     gbc.gridy=2;
     gbc.anchor=GridBagConstraints.WEST;
tbcc=new JTextField(15);
     gbl.setConstraints(tbcc,gbc);
     jpbc.add(tbcc);
     gbc.gridx=1;
     gbc.gridy=3;
     gbc.anchor=GridBagConstraints.WEST;
tbcd=new JTextField(15);
     gbl.setConstraints(tbcd,gbc);
     jpbc.add(tbcd);
//Lable's & Textfiled'sfor SC
     jpsc=new JPanel(gbl);
     jpsc.setBorder(BorderFactory.createTitledBorder(" SC/ST "));
     gbc.insets=new Insets(1,1,1,1);
gbc.weightx=0.01;
     gbc.weighty=0.01;
     gbc.gridx=0;
     gbc.gridy=0;
     lsc=new JLabel(" SC ");
     gbl.setConstraints(lsc,gbc);
     jpsc.add(lsc);
     gbc.gridx=0;
     gbc.gridy=1;
     lst=new JLabel(" ST ");
     gbl.setConstraints(lst,gbc);
     jpsc.add(lst);     
gbc.gridx=1;
     gbc.gridy=0;
     gbc.anchor=GridBagConstraints.WEST;
tsc=new JTextField(15);
     gbl.setConstraints(tsc,gbc);
     jpsc.add(tsc);
     gbc.gridx=1;
     gbc.gridy=1;
     gbc.anchor=GridBagConstraints.WEST;
tst=new JTextField(15);
     gbl.setConstraints(tst,gbc);
     jpsc.add(tst);
//Lable's & Textfiled'sfor WR Or Ladies REservations
     jpwr=new JPanel(gbl);
     jpwr.setBorder(BorderFactory.createTitledBorder(" Women "));
     gbc.insets=new Insets(1,1,1,1);
gbc.weightx=0.01;
     gbc.weighty=0.01;
     gbc.gridx=0;
     gbc.gridy=0;
     lwr=new JLabel(" Women/Ladies ");
     gbl.setConstraints(lwr,gbc);
     jpwr.add(lwr);
     gbc.gridx=1;
     gbc.gridy=0;
     gbc.anchor=GridBagConstraints.WEST;
twr=new JTextField(15);
     gbl.setConstraints(twr,gbc);
     jpwr.add(tsc);
jpbutton = new JPanel(new GridLayout(1,3));
     b1=new JButton("Submit");
     b1.setBounds(10,10,25,25);
     b2=new JButton("Change");
     b3=new JButton("Cancel");
     jpbutton.add(b1);
     jpbutton.add(b2);
     jpbutton.add(b3);
// add all Panels to Main Panel
     add(jpbc);
     add(jpsc);
     add(jpwr);
     add(jpbutton);
}

Answer 1

depends on how you want them to appear.
here's one way to change the current 'large' buttons
JPanel p = new JPanel(new BorderLayout());//<---
jpbutton = new JPanel(new GridLayout(1,3));
b1=new JButton("Submit");
b1.setBounds(10,10,25,25);
b2=new JButton("Change");
b3=new JButton("Cancel");
jpbutton.add(b1);
jpbutton.add(b2);
jpbutton.add(b3);
p.add(jpbutton,BorderLayout.SOUTH);//<---
// add all Panels to Main Panel
add(jpbc);
add(jpsc);
add(jpwr);
//add(jpbutton);//<---
add(p);//<---