Javase Study notes: Chapter tenth swing frequently uses control classes (ii)

7. JComboBox drop-down list
/*
* Initialize drop-down list
*/
public void Addcomb () {
string[] area = {"Shanxi province", "Shandong province", "Hebei province", "Shaanxi province"};
JComboBox jb=new JComboBox (area);
Jb.setsize (70, 20);
Jb.setlocation (120, 200);
Jb.setopaque (FALSE);
C.add (JB);
String[] area1 = {"Taiyuan", "Changzhi", "Xinzhou", "Yuci"};
JComboBox jb1=new JComboBox (AREA1);
Jb1.setsize (70, 20);
Jb1.setlocation (200, 200);
Jb1.setopaque (FALSE);
C.add (JB1);
C.setlayout (NULL);
}

8. JList List
/*
* Initialize List
*/
public void Addlist () {
string[] data = {"One", "one", "three", "four"};

JList jl=new JList (data);

Jl.setsize (100, 500);
Jl.setlocation (100, 50);
C.add (JL);
C.setlayout (NULL);
}

9. JTextArea Text Field
/*
* Initialize text area
*/
public void Addarea () {
JTextArea ja=new JTextArea ();
Ja.setsize (100, 40);
JScrollPane jp=new JScrollPane (JA);
Jp.setsize (200, 60);
Jp.setlocation (100, 100);
C.add (JP);
C.setlayout (NULL);
}
10. JMenu Create menu bar
/*
* Create a menu bar
*/
public void Addbar () {
Create a menu bar
JMenuBar jmb=new JMenuBar ();
Jmb.setsize (This.getwidth (), 30);
Jmb.setlocation (0, 0);
C.add (JMB);
C.setlayout (NULL);
Create a Menu
JMenu filemenu=new JMenu ("File (F)");
JMenu editmenu=new JMenu ("edit (E)");
JMenu editmenu1=new JMenu ("Format (O)");
JMenu editmenu2=new JMenu ("View (V)");
JMenu editmenu3=new JMenu ("Help (H)");
Set shortcut keys
Filemenu.setmnemonic (' f ');
Editmenu.setmnemonic (' e ');
Editmenu1.setmnemonic (' O ');
Editmenu2.setmnemonic (' V ');
Editmenu3.setmnemonic (' h ');
Add menu to menu bar
Jmb.add (Filemenu);
Jmb.add (Editmenu);
Jmb.add (EDITMENU1);
Jmb.add (EDITMENU2);
Jmb.add (EDITMENU3);
Create a menu item
JMenuItem it1=new JMenuItem ("new");
JMenuItem it2=new JMenuItem ("Save");
JMenuItem it3=new JMenuItem ("open");
JMenuItem it4=new JMenuItem ("exit");
Add menu item to File menu
Filemenu.add (IT1);
Filemenu.add (IT2);
Filemenu.add (IT3);
Adding a cutting character
Filemenu.addseparator ();
Filemenu.add (IT4);
Create a menu item
JMenuItem it11=new jmenuitem ("copy");
JMenuItem it12=new JMenuItem ("cut");
JMenuItem it13=new JMenuItem ("paste");
JMenuItem it14=new JMenuItem ("find");
Adding menu items to the Edit menu
Editmenu.add (IT11);
Editmenu.add (it12);
Editmenu.add (IT13);
Editmenu.add (it14);



}

Javase Study notes: Chapter tenth swing frequently uses control classes (ii)