import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
  public class welcome extends JFrame
     {
           JPanel p;
         JButton b1,b2,b3;
  public static void main(String [] args)
        {
            welcome m=new welcome();
        }
  public welcome()
    {
          p=new JPanel();
        p.setLayout(null);

   Font f1=new Font("Calibri",Font.BOLD,45);
   Font f2=new Font("Calibri",Font.BOLD,20);

   JLabel L1=new JLabel("Welcome to NIIT Student Library");

               L1.setFont(f1);

     b1=new JButton("Login");

            b1.setFont(f2);

    b2=new JButton("New User");

            b2.setFont(f2);

    b3=new JButton("Exit");

            b3.setFont(f2);

    L1.setBounds(280,170,650,90);
    b1.setBounds(320,600,120,50);
    b2.setBounds(700,600,170,50);
    b3.setBounds(950,740,150,50);

           p.add(L1);
           p.add(b1);
           p.add(b2);
           p.add(b3);

        this.getContentPane().add(p);
        this.setSize(500,500);
        this.setVisible(true);
         p.setBackground(Color.white);
            JLogin login=new JLogin();
            JLogin1 login1=new JLogin1();
            //JLogin2 login2=new JLogin2();
               b1.addActionListener(login);
              b2.addActionListener(login1);
              //b3.addActionListener(login2);

      }

      class JLogin implements ActionListener
       {
               public void actionPerformed(ActionEvent ev)
               {
                   Object ob=ev.getSource();
                   if(ob==b1)
                 {
                    Login L=new Login();
                  }
              }
         }
       class JLogin1 implements ActionListener
       {
         public void actionPerformed(ActionEvent sv)
          {
                  Object ob1=sv.getSource();
                  if(ob1==b2)
              {
                  Signup s=new Signup();
            }
          }
       }
      /*class JLogin2 implements ActionListener
      {
          public void actionPerformed(ActionEvent ae)
           {
               Object ob2=ae.getSource();
               if(ob2==b3);
                {
                    ob2.close();
                }
          }
      }*/

   }

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class Signup
       {
          public Signup()
           {
            JFrame f1=new JFrame("SignUp Form");
             JPanel p1=new JPanel();


             JLabel l1=new JLabel("Student ID");
              JLabel l2=new JLabel("First Name");
              JLabel l3=new JLabel("Last Name");
              JLabel l4=new JLabel("Password");
              JLabel l5=new JLabel("Gender");
              String []combopkg={"Male","Female"};
              JComboBox gender=new JComboBox(combopkg);

             /*JLabel l5=new JLabel("Address");
             JLabel l6=new JLabel("City");
             JLabel l7=new JLabel("Address of NIIT Center");
             JLabel l8=new JLabel("Domicile");
             JLabel l9=new JLabel("Country");
             JLabel l10=new JLabel("Pincode");*/

             JTextField tf1=new JTextField(10);
             JTextField tf2=new JTextField(10);
             JTextField tf3=new JTextField(10);
             /*JTextField tf4=new JTextField(10);
             JTextField tf5=new JTextField(10);
             JTextField tf6=new JTextField(10);
             JTextField tf7=new JTextField(10);
             JTextField tf8=new JTextField(10);
             JTextField tf9=new JTextField(10);*/
             JPasswordField pf=new JPasswordField(10);
             JButton b1=new JButton("Create My Account");

     l1.setBounds(30,15,150,80);;
     tf1.setBounds(120,38,150,29);
     l2.setBounds(30,40,100,100);
     tf2.setBounds(120,80,150,29);
     l3.setBounds(290,64,150,60);
     tf3.setBounds(370,80,150,29);
     l4.setBounds(30,95,100,80);
     pf.setBounds(120,120,150,29);
     l5.setBounds(30,125,100,80);
     b1.setBounds(400,300,170,50);

      p1.add(l1);
      p1.add(tf1);
      p1.add(l2);
      p1.add(tf2);
      p1.add(l3);
      p1.add(tf3);
      p1.add(l4);
      p1.add(pf);
      p1.add(l5);
      p1.add(gender);
      p1.add(b1);
      pf.setEchoChar('*');
      p1.setLayout(null);

     f1.getContentPane().add(p1);
     f1.setSize(500,500);
     f1.setVisible(true);
     p1.setBackground(Color.pink);
    }
}

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
   public class Login
     {
         public Login()
         {
             JFrame f1=new JFrame();
             JPanel p1=new JPanel();
             JLabel l1=new JLabel("User Name");
             JLabel l2=new JLabel("password");
     JTextField tf1=new JTextField(10);
    
     JButton b1=new JButton("Login");
     JPasswordField pf=new JPasswordField(10);
             
     l1.setBounds(350,100,650,60);
     tf1.setBounds(420,170,650,100);
     l2.setBounds(450,170,650,100);
     pf.setBounds(420,170,650,100);
     b1.setBounds(700,600,170,50);
    
     p1.add(l1);
     p1.add(tf1);
     p1.add(l2);
     p1.add(pf);
     p1.add(b1);
     pf.setEchoChar('*');
    
     f1.getContentPane().add(p1);
     f1.setSize(500,500);
     f1.setVisible(true);
     p1.setBackground(Color.pink);
    }
   }