阅读下面程序段，SelectItem应用程序显示从文本域的组合框中进行选择，请在程序中的画线处添上正确的语句使得程序能够正确运行。
...
JTextField result = new JTextField（ ）;
JComboBox pick = new JComboBox （ ）;
public SelectItem（ ）
super ("Select Item");
pick.addItemListener(this);
pick.addItem("Navigtor");
pick.addItem("Internet Explorer");
pick.addItem("Opera");
pick.setEditable(false);
result.setHorizontalAlignment(SwingConstants.CENTER);
result, setEditable (false);
pane.setLayout(new BorderLayout（ ）);
【12】
pane.add(pick,"Center");
pane.add(result,"South");
setContentPane(pane);
public void itemStateChanged(ItemEvent evt)
Object source = evt.getSource（ ）;
if(source == pick)
Object newPick = evt.getItem（ ）;
result .setText(newPick.toString（ ）+" is the selection. ");
repaint（ ）;
题库:计算机等级考试
类型:填空题
时间:2017-07-03 15:35:35
免费下载:《填空》Word试卷
阅读下面程序段，SelectItem应用程序显示从文本域的组合框中进行选择，请在程序中的画线处添上正确的语句使得程序能够正确运行。
...
JTextField result = new JTextField（ ）;
JComboBox pick = new JComboBox （ ）;
public SelectItem（ ）
super ("Select Item");
pick.addItemListener(this);
pick.addItem("Navigtor");
pick.addItem("Internet Explorer");
pick.addItem("Opera");
pick.setEditable(false);
result.setHorizontalAlignment(SwingConstants.CENTER);
result, setEditable (false);
pane.setLayout(new BorderLayout（ ）);
【12】
pane.add(pick,"Center");
pane.add(result,"South");
setContentPane(pane);
public void itemStateChanged(ItemEvent evt)
Object source = evt.getSource（ ）;
if(source == pick)
Object newPick = evt.getItem（ ）;
result .setText(newPick.toString（ ）+" is the selection. ");
repaint（ ）;
本题关键词:程序,应急处置程序,面试程序,程序性文件,处方销毁程序,当场处罚程序,工程施工程序,复苏程序,工作程序,建设程序;
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