import java.awt.*;
import java.awt.event.*;public class ch extends Frame implements ItemListener
{
public static void main(String[] args) { new ch();
}
Choice size;
Panel p1,p2,p3,p4;
Label e1,e2,e3,e4,e5,msg;
TextField text1,text2,text3,text4,text5;
/* p1=new Panel();p2=new Panel();p3=new Panel();
p1.add(e1);*/ch()
{
public void init()
{
size = new Choice();
e1=new Label("设备维修编号");
e2=new Label("设备编号");
text2=new TextField(20);
p1=new Panel();
p1.add(e1);
size.add("10");
size.add("14");
size.add("18");
p1.add(size);
p1.add(e2);
p1.add(text2);
setLayout(new FlowLayout());
add(p1);}
size.addItemListener(this);
{
public void itemStateChanged(ItemEvent e)
{
String s;
if(e.getItemSelectable() instanceof Choice)
{
Choice ctemp = (Choice)(e.getItemSelectable());
s = ctemp.getSelectedItem();
System.out.println(s);
}
import java.awt.event.*;public class ch extends Frame implements ItemListener
{
public static void main(String[] args) { new ch();
}
Choice size;
Panel p1,p2,p3,p4;
Label e1,e2,e3,e4,e5,msg;
TextField text1,text2,text3,text4,text5;
/* p1=new Panel();p2=new Panel();p3=new Panel();
p1.add(e1);*/ch()
{
public void init()
{
size = new Choice();
e1=new Label("设备维修编号");
e2=new Label("设备编号");
text2=new TextField(20);
p1=new Panel();
p1.add(e1);
size.add("10");
size.add("14");
size.add("18");
p1.add(size);
p1.add(e2);
p1.add(text2);
setLayout(new FlowLayout());
add(p1);}
size.addItemListener(this);
{
public void itemStateChanged(ItemEvent e)
{
String s;
if(e.getItemSelectable() instanceof Choice)
{
Choice ctemp = (Choice)(e.getItemSelectable());
s = ctemp.getSelectedItem();
System.out.println(s);
}
import java.awt.*;
import java.awt.event.*;public class ch extends Frame implements ItemListener
{
public static void main(String[] args) { new ch();
}
Choice size;
Panel p1,p2,p3,p4;
Label e1,e2;
TextField text1;
ch(){
public void init(){
size = new Choice();
e1=new Label("设备维修编号");
e2=new Label("设备编号");
text2=new TextField(20);
p1=new Panel();
p1.add(e1);
size.add("10");
size.add("14");
size.add("18");
p1.add(size);
p1.add(e2);
p1.add(text2);
setLayout(new FlowLayout());
add(p1);
size.addItemListener(this);
public void itemStateChanged(ItemEvent e){
String s;
if(e.getItemSelectable() instanceof Choice){
Choice ctemp = (Choice)(e.getItemSelectable());
s = ctemp.getSelectedItem();
System.out.println(s);
}
} }
}
}
import java.awt.event.*;public class ch extends Frame implements ItemListener
{
public static void main(String[] args) { new ch();
}
Choice size;
Panel p1,p2,p3,p4;
Label e1,e2;
TextField text1,text2;
ch(){
public void init()
{
size = new Choice();
e1=new Label("设备维修编号");
e2=new Label("设备编号");
text2=new TextField(20);
p1=new Panel();
p1.add(e1);
size.add("10");
size.add("14");
size.add("18");
p1.add(size);
p1.add(e2);
p1.add(text2);
setLayout(new FlowLayout());
add(p1);
size.addItemListener(this);
}
public void itemStateChanged(ItemEvent e){
String s;
if(e.getItemSelectable() instanceof Choice){
Choice ctemp = (Choice)(e.getItemSelectable());
s = ctemp.getSelectedItem();
System.out.println(s);
}
}
}
}
import java.awt.*;
import java.awt.event.*;public class ch extends Frame implements ItemListener
{ Choice size; Panel p1, p2, p3, p4; Label e1, e2; TextField text1; TextField text2; public static void main(String[] args)
{
new ch();
} public ch()
{ size = new Choice();
e1 = new Label("设备维修编号");
e2 = new Label("设备编号"); text2 = new TextField(20);
p1 = new Panel();
p1.add(e1);
size.add("10");
size.add("14");
size.add("18");
p1.add(size);
p1.add(e2);
p1.add(text2);
setLayout(new FlowLayout());
add(p1);
size.addItemListener(this); } @Override
public void itemStateChanged(ItemEvent e)
{
String s;
if (e.getItemSelectable() instanceof Choice)
{
Choice ctemp = (Choice) (e.getItemSelectable());
s = ctemp.getSelectedItem();
System.out.println(s);
} }
}
import java.awt.event.*;public class ch1 extends Frame implements ItemListener
{ Choice size; Panel p1, p2, p3, p4; Label e1, e2; TextField text1; TextField text2; public static void main(String[] args)
{
new ch1();
} public ch1()
{
System.out.println("1");
size = new Choice();
e1 = new Label("设备维修编号");
e2 = new Label("设备编号"); text2 = new TextField(20);
p1 = new Panel();
p1.add(e1);
size.add("10");
size.add("14");
size.add("18");
p1.add(size);
p1.add(e2);
p1.add(text2);
setLayout(new FlowLayout());
add(p1);
setSize(800,600);
setVisible(true);
size.addItemListener(this);System.out.println("2");
} //@Override
public void itemStateChanged(ItemEvent e)
{
System.out.println("3");
Choice ctemp;
String s;
if (e.getItemSelectable() instanceof Choice)
{
ctemp = (Choice) (e.getItemSelectable());
s = ctemp.getSelectedItem();
System.out.println(s);
} }
}