Login Form- Simple Java Coding

hI FRIENDS,

As now I am going to share someting new about java coding.

It will help You to  to start your carrer in java langauge.

It is the most versatile language in the world and mostly used in all the the field. So do You wan lern JAVA its really  interesting  and very useful for all of the young generalizations who want a bi devrsified knowledge in all the fields.

Today I am going to share a code which will make you a Login button using j2sdk.



I will write a fresh blog in which you all can be a master in JAVA programing a step by step tutorial will be placed which will help you alot to learn and be a master in it.


Here is the coding..

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//Username Password Login Pannel.. // import java.awt.*; import javax.swing.*; import java.awt.event.*; public class login extends JFrame implements ActionListener { JPanel p1; JFrame f1; JButton b1,b2; JLabel l1,l2,l3; JTextField t1; JPasswordField pp; GridBagLayout gbl; GridBagConstraints gbc; login() { p1= new JPanel(); f1=new JFrame(); l1=new JLabel("Username : "); l2=new JLabel("Password : "); t1=new JTextField(10); b2=new JButton("Exit"); b2.setBackground(Color.green); b2.setForeground(Color.red); pp=new JPasswordField(10); b1=new JButton("OK"); b1.setBackground(Color.blue); b1.setForeground(Color.white); gbl= new GridBagLayout(); gbc=new GridBagConstraints(); p1.add(l1); gbc.anchor=GridBagConstraints.CENTER; gbc.gridx=0; gbc.gridy=0; gbl.setConstraints(l1,gbc); p1.add(t1); gbc.anchor=GridBagConstraints.CENTER; gbc.gridx=1; gbc.gridy=0; gbl.setConstraints(t1,gbc); p1.add(l2); gbc.anchor=GridBagConstraints.CENTER; gbc.gridx=0; gbc.gridy=1; gbl.setConstraints(l2,gbc); p1.add(pp); gbc.anchor=GridBagConstraints.CENTER; gbc.gridx=1; gbc.gridy=1; gbl.setConstraints(pp,gbc); p1.add(b1); b1.addActionListener(this); gbc.anchor=GridBagConstraints.CENTER; gbc.gridx=0; gbc.gridy=2; gbl.setConstraints(b1,gbc); p1.add(b2); b2.addActionListener(this); gbc.anchor=GridBagConstraints.CENTER; gbc.gridx=1; gbc.gridy=2; gbl.setConstraints(b2,gbc); f1.getContentPane().add(p1); f1.setSize(500,500); f1.setVisible(true); } public void actionPerformed(ActionEvent e) { if (e.getSource()==b1) { String str1; String str2,str3,str4; str1="nagendra"; str2="asdf"; str3=t1.getText(); str4=pp.getText(); f1.setVisible(false); if(str1.equals(str3)&&str2.equals(str4)) { JOptionPane.showMessageDialog(null,"You are Logged In"); PDataBase pe=new PDataBase(); } else { JOptionPane.showMessageDialog(null,"invalid"); f1.setVisible(true); } } if (e.getSource()==b2) { System.exit(0); } } public static void main(String args[]) { login n=new login(); } }


Just copy paste this coding and you will get a desire out..of a login form.



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