Java implements a simple random name register

Nonsense not much to say that everyone can look at the code

Import Java.awt.borderlayout;import java.awt.color;import java.awt.container;import java.awt.event.ActionEvent; Import Java.awt.event.actionlistener;import java.util.random;import javax.swing.jbutton;import javax.swing.JFrame; Import Javax.swing.jlabel;import Javax.swing.swingconstants;public class Randomname {//main panel JFrame rframe=new JFrame ("with  Machine name device "); Name string[] stuname={"Yang Yi", "Lu Hui", "Rongpeng", "Liu Jianpeng", "Zhao Kun", "Ruthron", "Xu Yan", "GM", "Lio Jo", "Ma Peng", "Cao Tianyu", "Li Yongcheng", "Deng Xuming", "Guo reputation", "Feng Xiaolo", "Wang Lulu"  , "Wang Dan", "Liu Huilan", "He Fahai", "Liu Baiyu"};  The label used to store the name JLabel name = new JLabel ();  Button JButton btn = new JButton ("Start name");  The use of pseudo-random numbers, we can not use this, this can be found on the Web Java random number settings Random rd = new random ();  public void init () {//Hint label page JLabel jt= new JLabel ("Random name Register");  Set Label Center jt.sethorizontalalignment (Swingconstants.center);  Set the font size Jt.setfont (new Java.awt.Font ("Random name Register", 1,35));      Set the label of the name display centered name.sethorizontalalignment (swingconstants.center); The Listener Event Btn.addactionlistener (new ActionListener () {@Overridepublic of the action button is implemented through an anonymous classvoid actionperformed (ActionEvent e) {//TODO auto-generated method stub//Gets the random name String n=getrandomname ();    Sets the name label's text Name.settext (n);    Set Font Name.setfont (new Java.awt.Font (n,1,35));            Set the font color Name.setforeground (color.red);}      });  Gets the jframe panel Container p = This.rFrame.getContentPane ();  To set the layout way, I used the BorderLayout layout p.setlayout (new BorderLayout (3,1));  Add hint label in North P.add (Jt,borderlayout.north);  Add name tag in central p.add (Name,borderlayout.center);  Add a button control in the South P.add (Btn,borderlayout.south);  Resizing, this is the size of rframe.pack () that cannot be set in Java;  Set the form size rframe.setsize (300, 300);      Settings can display rframe.setvisible (true);  }//Get the random name Public String getrandomname () {int a = 0;  When the random class is to implement the stochastic number, it can only set the upper limit, that is, the random number is generated by the number A = Rd.nextint (stuname.length) between 0-stuname.length;  Rd.setseed ();    A = (int) math.random () *stuname.length;  return Stuname[a];  } public static void Main (string[] args) {randomname rn=new randomname ();  Rn.init (); }}

Java implements a simple random name register