这段程序错在那里怎么不能运行
import java.awt.*;
//import java.applet.*;
import java.awt.event.*;
import javax.swing.*;
class IdentityCard
{
public static void main(String args[])
{
frmMain f=new frmMain();
f.setSize(400,300);
f.show();
}
}
class frmMain extends JFrame implements ActionListener{
Label lblTitle, lblReIdens, lblSoIdens, lblBirthDay, lblSex;
Label lblMessage, lblIdResult, lblBirResult, lblSexResult;
final int v_List[] = {2,4,8,5,10,9,7,3,6,1,2,4,8,5,10,9,7};
Button workButton, resetButton;
int[] tailList = new int[17];
TextField txtIdentity = null;
Panel disPanel = null;
Label lblReset;
int num;
frmMain(){
this.setFont(new Font( "Georgia ", Font.BOLD, 20));
this.setBackground(Color.LIGHT_GRAY);
this.setLayout(new GridLayout(1,1));
lblTitle = new Label( "身份证号码15位到18位转换 ");
lblTitle.setBounds(70, 10, 260, 20);
lblReIdens = new Label( "15位身份证号: ");
lblReIdens.setBounds(10, 40, 140, 20);
txtIdentity = new TextField( " ", 100);
txtIdentity.setBounds(165, 38, 210, 22);
lblSoIdens = new Label( "18位身份证号: ");
lblSoIdens.setBounds(10, 70, 140, 20);
lblIdResult = new Label( " ");
lblIdResult.setBounds(160, 68, 210, 22);
lblBirthDay = new Label( "出生日期: ");
lblBirthDay.setBounds(53, 100, 95, 20);
lblBirResult = new Label( " ");
lblBirResult.setBounds(160, 98, 200, 22);
lblSex = new Label( "性别: ");
lblSex.setBounds(94, 130, 60, 20);
lblSexResult = new Label( " ");
lblSexResult.setBounds(160, 128, 50, 22);
lblMessage = new Label( " ",Label.CENTER);
lblMessage.setBounds(10, 160, 380, 22);
lblMessage.setForeground(Color.MAGENTA);
workButton = new Button( "转换 ");
workButton.addActionListener(this);
workButton.setBounds(140, 190, 50, 22);
workButton.setBackground(Color.LIGHT_GRAY);
resetButton = new Button( "重置 ");
resetButton.addActionListener(this);
resetButton.setBounds(205, 190, 50, 22);
resetButton.setBackground(Color.LIGHT_GRAY);
this.add(lblTitle); this.add(lblReIdens);
this.add(txtIdentity);this.add(lblSoIdens);
this.add(lblBirthDay);this.add(lblSex);
this.add(lblIdResult);this.add(lblBirResult);
this.add(lblSexResult);this.add(lblMessage);
this.add(workButton);this.add(resetButton);
}
public void actionPerformed(ActionEvent e){
if(e.getSource() == workButton){
checkIdentity();
doConverte();
}else{
clearContent();
txtIdentity.setText( " ");
lblMessage.setText( "请重新输入! ");
}
}
//身份证号的验证处理
public void checkIdentity(){
boolean Flag = false;
num = txtIdentity.getText().trim().length();
if(num == 0){
//没有输入值的处理
clearContent();
lblMessage.setText( "请输入身份证号! ");
}else{
//输入字母的数字位时处理
try{
long i = Long.parseLong(txtIdentity.getText().trim());
Flag = true;
}catch(Exception e){ //NumberFormatException
Flag = false;
clearContent();
txtIdentity.selectAll();
lblMessage.setText( "你输入的身份证号无效! ");
}
//输入位数不是标准的位数时处理
if(Flag == true){
if(num != 15 && num != 18){
clearContent();
txtIdentity.selectAll();
lblMessage.setText( "你输入的身份证位数是 "+ num + ",请重新输入! ");
}
}
}
}
//清除画面中的输入内容
public void clearContent(){
lblIdResult.setText( " ");
lblBirResult.setText( " ");
lblSexResult.setText( " ");
txtIdentity.requestFocus();
}
//实际转换并显示结果
public void doConverte(){
int Sum = 0;
String T = null;
if(num == 15){
//显示18位身份证号
String identity = txtIdentity.getText().trim().substring(0,6) + "19 " +
txtIdentity.getText().trim().substring(6);
for(int i = 0; i < identity.length(); i++){
tailList[i] = Integer.parseInt(identity.substring(i, i + 1));
}
for(int i = 0, j = 16; i < 17; i++, j--){
Sum = Sum + tailList[j] * v_List[i];
}
int R = Sum % 11;
if(R == 0) T = "1 "; if(R == 1) T = "0 "; if(R == 2) T = "X ";
if(R == 3) T = "9 "; if(R == 4) T = "8 "; if(R == 5) T = "7 ";
if(R == 6) T = "6 "; if(R == 7) T = "5 "; if(R == 8) T = "4 ";
if(R == 9) T = "3 "; if(R == 10) T = "2 ";
String identityN = identity + T;
lblIdResult.setText(identityN);
//显示出生日期
String str = "19 " + txtIdentity.getText().trim().substring(6, 8) + "年 " +
txtIdentity.getText().trim().substring(8, 10) + "月 " +
txtIdentity.getText().trim().substring(10, 12) + "日 ";
lblBirResult.setText(str);
//显示性别
int sexNum = identity.charAt(16);
if(sexNum % 2 == 0){
lblSexResult.setText( "女 ");
}else{
lblSexResult.setText( "男 ");
}
lblMessage.setText( "转换成功! ");
}
if(num == 18){
//显示出生日期
lblIdResult.setText(txtIdentity.getText());
//显示出生日期
String str = txtIdentity.getText().trim().substring(6, 10) + "年 " +
txtIdentity.getText().trim().substring(10, 12) + "月 " +
txtIdentity.getText().trim().substring(12, 14) + "日 ";
lblBirResult.setText(str);
//显示性别
int sexNum = txtIdentity.getText().trim().charAt(16);
if(sexNum % 2 == 0){
lblSexResult.setText( "女 ");
}else{
lblSexResult.setText( "男 ");
}
lblMessage.setText( "你输入的身份证是18位的! ");
}
}
}
[解决办法]
能运行啊..
就是布局上有点问题.
我把这行给注了
this.setLayout(new GridLayout(1,1));
[解决办法]
把错误堆栈也贴上来阿，要不怎么判断？
[解决办法]
系统不是已经明确提示了么？
没有使用布局管理器，所以会报错。frmMain.getContentPane()使用的是默认的布局管理器
