所以当我点击添加菜单时，我正在尝试填写表格。因此，一旦我点击添加，它将显示一个填充表格，我必须填写它，以便我可以使用我制作的jtextarea在另一个窗口或框架上查看它。我的问题是，一旦我在填充表单上输入数据，输出将只显示jtextarea中的一个文本字段。我必须输出我放置在jtextfield中的所有输入，并将其输出为另一个jtextarea中的输入。另外，我必须将JLabel放在jtextarea输出上。例如，我有FirstName标签，我将输入Jtext“我的名字”然后它应该在另一个窗口输出作为名字：MyName以及要输入的其他要求。希望我能得到一些帮助。谢谢。到目前为止，这是我的工作：
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Sample extends JFrame implements ActionListener {
JTextField r = new JTextField();
JDesktopPane desk = new JDesktopPane();
JMenuBar bar = new JMenuBar();
JMenu mAdd = new JMenu("Add");
JMenu mView = new JMenu("View");
JMenuItem miNew =new JMenuItem("New");
JMenuItem miExit = new JMenuItem("Exit");
JMenuItem miStudInfo = new JMenuItem("Student Info");
JMenuItem miEducInfo = new JMenuItem("Educational Info");
JLabel personalInfo = new JLabel("Personal Information");
JLabel space1 = new JLabel("");
JLabel space2 = new JLabel("");
JLabel studnum = new JLabel("Student #: ");
JLabel space3 = new JLabel("");
JTextField jtxstudnum = new JTextField();
JLabel fname = new JLabel("First Name: ");
JLabel space4 = new JLabel("");
JTextField jtxfname = new JTextField();
JLabel midname = new JLabel("Middle Name: ");
JLabel space5 = new JLabel("");
JTextField jtxmidname = new JTextField();
JLabel lname = new JLabel("Last Name: ");
JLabel space6 = new JLabel("");
JTextField jtxlname = new JTextField();
JLabel address = new JLabel("Address: ");
JLabel space7 = new JLabel("");
JTextField jtxaddress = new JTextField();
JLabel educQualify = new JLabel("Educational Qualification");
JLabel space8 = new JLabel("");
JLabel space9 = new JLabel("");
JLabel preschool = new JLabel("Preschool: ");
JTextField jtxpre= new JTextField();
JTextField jtxpreyear = new JTextField();
JLabel elementary = new JLabel("Elementary: ");
JTextField jtxelem = new JTextField();
JTextField jtxelemyear = new JTextField();
JLabel highschool = new JLabel("HighSchool: ");
JTextField jtxhigh = new JTextField();
JTextField jtxhighyear = new JTextField();
JLabel college = new JLabel("College: ");
JTextField jtxcol = new JTextField();
JTextField jtxcolyear = new JTextField();
JLabel postgrad = new JLabel("PostGrad: ");
JTextField jtxpost = new JTextField();
JTextField jtxpostyear = new JTextField();
JLabel space10 = new JLabel("");
JButton jbtnView = new JButton("View");
JButton jbtnReset = new JButton("Reset");
JPopupMenu jpExit = new JPopupMenu("Select an option");
JButton yes = new JButton("Yes");
JButton no = new JButton("No");
JButton cancel = new JButton("Cancel");
JLabel message;
JTabbedPane tabbedPane;
//JTabbedPane tabStudInfo = new JTabbePane("Student Info");
//JTabbedPane tabEducInfo = new JTabbePane("Educational Info");
JPanel p1;
JPanel p2;
JPanel p3;
Container con = getContentPane();
public Sample() {
setTitle("Student Information");
setSize(900,700);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
con.add(desk);
setJMenuBar(bar);
bar.add(mAdd);
bar.add(mView);
mAdd.add(miNew);
mAdd.add(miExit);
mView.add(miStudInfo);
mView.add(miEducInfo);
miNew.addActionListener(this);
mAdd.add(miExit);
miExit.addActionListener(this);
miStudInfo.addActionListener(this);
miEducInfo.addActionListener(this);
setVisible(true);
}
public void actionPerformed(ActionEvent e){
if(e.getSource()==miNew){
JInternalFrame nf = new JInternalFrame("Add -> New", true, true, true, true );
nf.setSize(450,500);
nf.setDefaultCloseOperation(JInternalFrame.HIDE_ON_CLOSE);
Container con = nf.getContentPane();
con.setLayout(new GridLayout(13,2));
//con.setLayout(new GridLayout(6,2));
con.add(personalInfo);
con.add(space1);
con.add(space2);
//personalInfo.setBounds(2,2,200,30);
//x=100, y =50, width=300, height=30
con.add(studnum);
con.add(space3);
con.add(jtxstudnum);
con.add(fname);
con.add(space4);
con.add(jtxfname);
con.add(midname);
con.add(space5);
con.add(jtxmidname);
con.add(lname);
con.add(space6);
con.add(jtxlname);
con.add(address);
con.add(space7);
con.add(jtxaddress);
// con.setLayout(new GridLayout(6,3));
con.add(educQualify);
con.add(space8);
con.add(space9);
con.add(preschool);
con.add(jtxpre);
con.add(jtxpreyear);
con.add(elementary);
con.add(jtxelem);
con.add(jtxelemyear);
con.add(highschool);
con.add(jtxhigh);
con.add(jtxhighyear);
con.add(college);
con.add(jtxcol);
con.add(jtxcolyear);
con.add(postgrad);
con.add(jtxpost);
con.add(jtxpostyear);
// con.setLayout(new GridLayout(1,2));
con.add(space10);
con.add(jbtnView,BorderLayout.SOUTH);
con.add(jbtnReset,BorderLayout.SOUTH);
//r.setEditable(false);
jbtnView.addActionListener(this);
jbtnReset.addActionListener(this);
nf.setVisible(true);
desk.add(nf);
}
else if(e.getSource()==jbtnView){
r.setText(jtxstudnum.getText());
JInternalFrame showNF = new JInternalFrame("Show Result", true, true, true, true);
showNF.setSize(400,500);
showNF.setDefaultCloseOperation(JInternalFrame.DISPOSE_ON_CLOSE);
showNF.setLocation(300,0);
Container showNFcon = showNF.getContentPane();
showNFcon.setLayout(new FlowLayout());
JTabbedPane pane = new JTabbedPane();
JPanel p1 = new JPanel();
p1.setLayout(new FlowLayout());
JTextArea display = new JTextArea(20,30);
p1.add(display);
display.setText(jtxstudnum.getText()); display.setText(jtxfname.getText());
display.setText(jtxfname.getText());
display.setText(jtxmidname.getText());
display.setText(jtxlname.getText());
display.setText(jtxaddress.getText());
pane.add("Student Info", p1);
JPanel p3 = new JPanel();
p3.setLayout(new FlowLayout());
JTextArea display2 = new JTextArea(20,30);
p3.add(display2);
display2.setText(jtxpre.getText());
display2.setText(jtxpreyear.getText());
display2.setText(jtxelem.getText());
display2.setText(jtxelemyear.getText());
display2.setText(jtxhigh.getText());
display2.setText(jtxhighyear.getText());
display2.setText(jtxcol.getText());
display2.setText(jtxcolyear.getText());
display2.setText(jtxpost.getText());
display2.setText(jtxpostyear.getText());
pane.add("Educational Info", p3);
JPanel p2 = new JPanel();
p2.setLayout(new FlowLayout());
p2.add(pane);
showNFcon.add(p2);
showNF.setVisible(true);
desk.add(showNF);
}
//else if(e.getSource()==b){
// r.setText(t.getText());
// }
/*
else if(e.getSource()==miExit)
// con.add(jpExit);
int response = JOptionPane.showConfirmDialog(null,"Exit?","Select an option",JOptionPane.QUESTION_MESSAGE);
switch(response){
case JOptionPane.YES_OPTION:
message.setText("Yes");
System.exit(0);
break;
case JOptionPane.NO_OPTION:
message.setText("No");
break;
case JOptionPane.CANCEL_OPTION:
message.setText("Cancel");
break;
}*/
//System.exit(0);
}
/*
public void createPage1(){
panel1 = new JPanel();
// panel1=setLayout(new BorderLayout());
}
public void createPage2(){
panel2 = new JPanel();
// panel2=setLayout(new BorderLayout());
}*/
public static void main(String[] args) {
Sample frame = new Sample();
}
}
答案 0 :(得分：3)
你的问题就在这里......
display.setText(jtxstudnum.getText());
display.setText(jtxfname.getText());
display.setText(jtxfname.getText());
display.setText(jtxmidname.getText());
display.setText(jtxlname.getText());
display.setText(jtxaddress.getText());
setText这样做，它说，＆＃34;丢弃您当前设置文字的文字我将您作为您唯一的内容＆＃34; ...
相反，您希望使用JTextArea#append代替
display.append(jtxstudnum.getText());
display.append(jtxfname.getText());
display.append(jtxfname.getText());
display.append(jtxmidname.getText());
display.append(jtxlname.getText());
display.append(jtxaddress.getText());
它说的是什么，它将提供的文本附加到现有内容
仔细查看How to Use Text Areas了解更多详情