这个程序编译时有一个错误,望各位有识之士给在下指点一下

来源:百度知道 编辑:UC知道 时间:2024/09/28 17:46:18
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class FrameTest extends JFrame
{public FrameTest()
{super("客户信息");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(ture);
setSize(406,195);
}}
class PanelTest extends FrameTest{
JPanel panelOBj;
public PanelTest()
{panelOBj=new JPanel();
getContentPane().add(panelOBj);}}
class ComponentTest extends PanelTest
{JLabel labelName;
JLabel labelTelNo;
JLabel labelSex;
JLabel labelAge;
JTextField textName;
JTextField texttelNo;
JComboBox comboBoxOBj;
JTetfield textAge;
JButton buttonOBj;
public ComponentTest()
{labelName=new JLabel("客户名称:");
labelTelNo=new JLabel("电话号码:");
labelSex=new JLabel("性别:");
labelAge=new JLabel("年龄:");
textName=new JTextField(25);
textTelNo=JTextField(15);
String ComboBoxStr[]

正确如下::
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

class FrameTest extends JFrame {
public FrameTest() {
super("客户信息");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);//1
setSize(406, 195);
}
}

class PanelTest extends FrameTest {
JPanel panelOBj;

public PanelTest() {
super();
panelOBj = new JPanel();
getContentPane().add(panelOBj);
}
}

class ComponentTest extends PanelTest {
JLabel labelName;

JLabel labelTelNo;

JLabel labelSex;

JLabel labelAge;

JTextField textName;

JTextField textTelNo;

JComboBox comboBoxOBj;

JTextField textAge;

JButton buttonOBj;

public ComponentTest() {
super();
labelName = new JLabel("客户名称:");
labelTelNo = new JLabel("电话号码:&qu