java job scheduler

Import Java.awt.Panel;Import Java.awt.ScrollPane;Import java.awt.event.ActionEvent;Import Java.awt.event.ActionListener;Import Java.util.HashSet;Import Java.util.Random;Import Javax.swing.Box;Import Javax.swing.JButton;Import Javax.swing.JFrame;Import Javax.swing.JLabel;Import Javax.swing.JTextArea;public class Choujiang {JTextArea t=new JTextArea ();public static void Main (string[] args) {TODO auto-generated Method StubNew Choujiang (). Init ();}public void init () {Panel p=new Panel ();JFrame

"); Buttongroup grp=new buttongroup (); Grp.add (Fullitem); Grp.add (Normalitem); Viewmenu.add (linewrapitem); Viewmenu.addseparator (); Viewmenu.add (Fullitem); Viewmenu.add (Normalitem); Menubar.add (viewMenu); Btn1=new JButton ("OK"); Btn1.setsize (10,10);Btn1.addactionlistener (new ActionListener () {@Overridepublic void actionperformed (ActionEvent arg0) {TODO auto-generated Method StubJoptionpane.showmessagedialog (NULL, "success");}});BTN2 =new JButton ("Cancel");Btn2.addactionli

);A2 = new JLabel ("Password:");A2.setbounds (20,32,50,20);This.add (A2);a3 = new JComboBox ();A3.additem ("Huakaihualuo");A3.additem ("Hellow");A3.setbounds (75,10,105,20);This.add (A3);Password = new JPasswordField ("666666");Password.setbounds (75,33,105,20);Password.setechochar (' * ');This.add (password);Shi = new JButton ("login");Shi.setbounds (25,60,60,20);Add (shi);Shi.addactionlistener (new ActionListener () {@Overridepublic void actionperformed (ActionEvent e) {TODO auto-generated Met

Getstreet () {return this.street;}public int Getpost () {return this.post;}}public class liti2{public static void Main (string[] args) {TODO auto-generated Method StubEmployee me = new Employee ("140201115", "Shing", 5000, 0.1);System.out.println ("Number:" + me.getnumber () + "name" + me.getname ()+ "Base Salary" + me.getbasal () + "growth rate" + me.getincrease () + "total wage"+ me.salary ());}}Class Employee {private String number;private String name;private double basal;private double incr

[] args) {TODO auto-generated Method StubJFrame frame=new JFrame ();JPanel Main_panel =new JPanel (New BorderLayout ());Frame.setdefaultcloseoperation (Jframe.exit_on_close);String[] Itme = {". gif", ". bmp"};JComboBox frm=new JComboBox (itme);Frm.setenabled (TRUE);Frm.seteditable (TRUE);Frm.setmaximumrowcount (5);Frm.setbounds (230,30,130,25);Frame.setbounds (300,200,350,300);Frame.setvisible (TRUE);JTextArea main_text =new JTextArea ();Main_text.setbackground (Color.White);JScrollPane z=new JS

The teacher, did not understand, the reference classmate import Java.awt.color;import java.awt.borderlayout;import java.io.file;import Java.awt.Container; Import Java.awt.event.actionevent;import java.util.arraylist;import java.util.list;import Javax.swing.JComboBox; Import Javax.swing.jframe;import javax.swing.jlabel;import Javax.swing.jlist;import Javax.swing.jpanel;import Javax.swing.jscrollpane;import Javax.swing.jtextarea;public class FileUtils extends jframe{/** * Lists all files in the sp

= Player.getvisualcomponent ();if (VC! = null)Add (VC);CC = Player.getcontrolpanelcomponent ();if (cc! = null)Add (cc, Borderlayout.south);Pack ();}}public void itemstatechanged (ItemEvent e){loop =!loop;}public void Paint (Graphics g){if (first){int w = GetSize (). width;int h = getsize (). Height;G.setcolor (Color.Blue);G.fillrect (0, 0, W, h);Font f = new Font ("Dialoginput", Font.Bold, 16);G.setfont (f);FontMetrics fm = G.getfontmetrics ();int swidth = Fm.stringwidth ("* * Welcome");G.setco

/** @param args*/public static void copy (File A,file b) {try {FileInputStream fis = new FileInputStream ("A.mp3");FileOutputStream fos = new FileOutputStream ("Temp.mp3");byte[] buf = new byte[1024];int Len;int read = Fis.read ();while (len = Fis.read (buf))!=-1) {Fos.write (buf, 0, Len);}Fis.close ();Fos.close ();} catch (IOException e) {TODO auto-generated Catch blockE.printstacktrace ();} }public static void Main (string[] args) {TODO auto-generated Method StubFile A = new file ("");

Import Java.io.FileInputStream;Import java.io.FileNotFoundException;Import Java.io.FileOutputStream;Import java.io.IOException;public class CopyFile {public static void Copybytesfile (String sfilename,string dfilename) throws ioexception{Creating a file input stream object and a file output stream objectThe file input stream object is associated with the source fileFileInputStream fis = new FileInputStream (sfilename);File output stream object associated with a copy fileFileOutputStream fos = ne

ImportJava.util.Scanner; Public classAdd { Public Static intSumdigits (LongN) { intSum=0; while(n>0){ intM= (int) (n%10); Sum=sum+m; N=n/10; } returnsum;} Public Static voidMain (string[] args) {Try{System.out.println ("Please enter a number:"); Scanner SC=NewScanner (system.in); LongL=Sc.nextlong (); System.out.println ("Sum of the numbers entered for the number is" +sumdigits (l)); }Catch(Exception e) {System.out.println ("You are not entering numbers!" "); } }}

();}private void Makeframe () {NorthXuanxiang = new JPanel ();Bq4 = new JLabel ("Subject:");BQ5 = new JLabel ("Education");String[] JG = {"Level two computer", "level two C language", "Accounting practitioner Qualification Certificate", "English Four Level", "English Six", "Java Two"};Xlk = new JComboBox (JG);String[] xl = {"High school", "College", "undergraduate", "Master", "PhD"};LB = new JList (XL);Lb.setvisiblerowcount (1);GD = new JScrollPane (

ImportJava.io.BufferedInputStream;ImportJava.io.BufferedOutputStream;ImportJava.io.FileInputStream;ImportJava.io.FileOutputStream;Importjava.io.IOException; Public classCopyFile {/** * @paramargs*/ Public Static voidMain (string[] args) {Try{FileInputStream fis=NewFileInputStream ("E://a.mp3"); FileOutputStream Fos=NewFileOutputStream ("E://temp.mp3"); Bufferedinputstream bis=NewBufferedinputstream (FIS); Bufferedoutputstream Bos=NewBufferedoutputstream (FOS); intRead =Bis.read (); whil

("A.mp3", "Temp.mp3");} catch (IOException e) {TODO auto-generated Catch blockE.printstacktrace ();}T2=system.currenttimemillis ();System.out.println ("spents:" + (T2-T1) + "MS");}}(b) Multiple bytesImport java.io.*;/*** Implement file copy* @author Administrator**/public class CopyFile {public static void Copybytesfile (String sfilename,string dfilename) throws ioexception{Creating a file input stream object and a file output stream objectFileInputStream fis=new FileInputStream (sfilename);//F

);JPanel ContentPane = (JPanel) getcontentpane ();Contentpane.setlayout (New BorderLayout (8, 8));JPanel Leftpane = new JPanel ();{Leftpane.setlayout (New BorderLayout (8, 8));FileList = new JList (audiofiles);Filelist.setforeground (New Color (140, 171, 226));Filelist.setbackground (New Color (0, 0, 0));Filelist.setselectionbackground (New Color (87, 49, 134));Filelist.setselectionforeground (New Color (140, 171, 226));JScrollPane ScrollPane = new JScrollPane (fileList);Scrollpane.setcolumnhead

Main (string[] args) {TODO auto-generated Method StubJFrame frm = new JFrame ();Frm.setbounds (500,200,300,500);Frm.setvisible (TRUE);try {Liebiao.listdirectory (New File ("F:"));} catch (Illegalaccessexception e) {TODO auto-generated Catch blockE.printstacktrace ();}}}Package Liebiao;Import javax.swing.*;Import Javax.swing.border.CompoundBorder;Import Javax.swing.border.EmptyBorder;Import Java.awt.BorderLayout;Import Java.awt.Color;Import Java.awt.Font;Import Java.awt.Scrollbar;Import java.awt

(string[] args) {TODO auto-generated Method StubJFrame frame=new JFrame ();JPanel Main_panel =new JPanel (New BorderLayout ());//panelFrame.setdefaultcloseoperation (Jframe.exit_on_close);Frame.setlayout (NULL); Set combo boxString[] Itme = {". png", "ico"};JComboBox frm=new JComboBox (itme);Frm.setenabled (TRUE);Frm.seteditable (TRUE);Frm.setmaximumrowcount (5);Frm.setbounds (230,30,130,25); Frame.setbounds (400,200,350,400);Frame.setvisible (TRUE);JTextArea main_text =new JTextArea ();Main_te

the shop, you have to have raw material from the purchase. Therefore, the procurement will be the first procurement of raw materials over. But it is impossible to say that the production of the immediate procurement, must be in advance procurement. I'll throw it in the warehouse and put it out of the warehouse before I buy it. And some things are placed in the warehouse for a long time, and some things are placed in the warehouse time is very short. Fresh milk manufacturing Enterprises This is

,user_name,user_age) values (?,?,?)" ;PreparedStatementppst= Conn.preparestatement (SQL); ppst.setint (1,1); ppst.setstring (2, "Tomas"); ppst.setint (3,10); ppst.execute (); }publIcvoiddeletedata () throwsException{ stringsql= "DELETENBSP;FROMNBSP;EDU_USERNBSP;WHERENBSP;USER_IDNBSP;=NBSP;?" ;PreparedStatementppst= Conn.preparestatement (SQL); ppst.setint (1,1); ppst.execute ();} publicvoidupdatedata () throwsException{ Stringsql= "Updateedu_usersetuser_age=?,user_name =?whereuser_id=? " ;Prepar

Hands-on brain:1, read the following code (Catchwho.java), write out the program running results:2, write out the results of Catchwho2.java program operation3, when there are multiple nested try...catch...finally, pay special attention to finally the timing of execution. Read the Embedfinally.java example before you run it, observe its output, and summarize it.When there are multiple layers of nested Finally, exceptions are thrown at different levels

Calculate 2 numbers of subtraction Gu Weihua 2015/10/6Package Jisuan;Import Javax.swing.JOptionPane;public class Jiasuan {public static void Main (string[] args) {TODO auto-generated method stubsString Firstnumber; Define the prompt word for the input boxString Secondnumber; Define the prompt word for the input boxDouble NUM1; Define the first number of inputsDouble num2; Define the second number of inputsDouble add=0;Double jian=0;Double cheng=0;Double chu=0;Firstnumber =Joptionpane.showinputdi