"Automation __gui Automation" __java__ Case __java Application Calculator

One, the code is as follows

Package Www.woniu.gui.one;import Java.awt.color;import Java.awt.dimension;import java.awt.font;import Java.awt.point;import Java.awt.event.actionevent;import Java.awt.event.actionlistener;import Javax.swing.JButton; Import Javax.swing.jcombobox;import javax.swing.jframe;import Javax.swing.jlabel;import Javax.swing.JPanel;import Javax.swing.jtextfield;public class Mycalc__swing extends JFrame {//define interface elements, complete initialization operation private JPanel JPanel = new JPanel ();p Rivate JLabel jlable1 = new JLabel ("operand one");p rivate JLabel jlable2 = new JLabel ("operand two");p rivate JLabel jlable3 = new JLabel ("Operation type");p rivate JLabel jlable4 = new JLabel ("calculation result");p rivate JButton btncalc = new JButton ("calculation");p rivate JButton btnclose = new JButton ("Off");//define operand one, operand two private jtextfield Txtnumberx = new JTextField ("1");p rivate jtextfield txtnumbery = new JTextField ("2");//define drop-down box: Add, subtract, multiply, except private jcombobox<string> Calctype = new jcombobox<string> ();p rivate JLabel Lblresult = new JLabel ("The results are shown here ....) S ");p ublic static void main(string[] args) {//TODO auto-generated method stubmycalc__swing calc = new mycalc__swing (); Calc.windowinit (); Calc.buttoninvoke ();} Window initialization operation, setting element size, position, initial value private void Windowinit () {//TODO auto-generated method stub// Window Basic Properties This.setdefaultcloseoperation (Jframe.exit_on_close); this.setvisible (true); This.setsize (420, 280); This.settitle ("Java demo program");//control Properties, window position jlable1.setsize (new Dimension), Jlable1.setfont (New Font ("Dialog", Font.Bold), jlable1.setlocation (new Point), Jlable2.setsize (new Dimension); Jlable2.setlocation (n. New Point (Jlable3.setsize); (new Dimension); Jlable3.setlocation (new Point (108)); Jlable4.setsize ( New Dimension), Jlable4.setlocation (new Point (148)), Txtnumberx.setlocation (new Point (162, 41)); Txtnumberx.setname ("Txtnumberx"); Txtnumberx.setsize (new Dimension); Txtnumbery.setlocation (new Point (162), Txtnumbery.setname ("Txtnumbery"), Txtnumbery.setsize (New Dimension (160, 21));//Add 4 plus operator Calctype.additem to the drop-down box (" Addition ");Calctype.additem ("subtraction"), Calctype.additem ("multiplication"), Calctype.additem ("division"), Calctype.setlocation (new Point (162, 108)); Calctype.setname ("Calctype"); Calctype.setsize (new Dimension); Lblresult.setsize (new Dimension (150, 20)); Lblresult.setname ("Lblresult"); Lblresult.setbackground (Color.White); Lblresult.setlocation (new Point (162, 148)); Btncalc.setlocation (new Point), Btncalc.setname ("Btncalc"); Btncalc.setsize (New Dimension (90, 21)); Btnclose.setlocation (new Point), Btnclose.setname ("Btnclose"), Btnclose.setsize (New Dimension (80, 21));// Place the control in the container jpanel.setlayout (null); Jpanel.add (jlable1); Jpanel.add (jlable2); Jpanel.add (Jlable3); Jpanel.add (JLABLE4) ; Jpanel.add (Txtnumberx); Jpanel.add (txtnumbery); Jpanel.add (Lblresult); Jpanel.add (Btncalc); Jpanel.add (BtnClose); Jpanel.add (Calctype); This.add (JPanel);} Perform operations and close applications private void Buttoninvoke () {//TODO auto-generated method Stubbtnclose.addactionlistener (new ActionListener () {@Overridepublic void actionperformed (ActionEvent e) {//TODOAuto-generated method Stubdoclose ();}}); Btncalc.addactionlistener (new ActionListener () {@Overridepublic void actionperformed (ActionEvent e) {//TODO Auto-generated method Stubdouble Numberx = double.parsedouble (Txtnumberx.gettext ());d ouble numbery = Double.parsedouble (Txtnumbery.gettext ());d ouble result = Docalc (Numberx, numbery); Lblresult.settext (String.valueOf (result));});} Close application private void Doclose () {//TODO auto-generated method Stubsystem.exit (1);} Calculation operation public double Docalc (double x, double y) {//TODO auto-generated method Stubdouble result = 0;if (calctype.getselect Editem (). Equals ("addition")) {result= x + y;} else if (Calctype.getselecteditem () equals ("subtraction")) {result= x-y;} else if (Calctype.getselecteditem (). Equals ("multiplication")) {result= x * y;} else if (Calctype.getselecteditem (). Equals ("division")) {result= x/y;} return result;}}

"Automation __gui Automation" __java__ Case __java Application Calculator