我在一个包里写了几个java文件 编译能通过 运行的时候老提醒我Exception in thread "main"java.lang.NOclassDeffoundError 跪求解决一下吧 我都弄了几个小时还是同样的问题 拜托大师了!
我的具体程序是文件1:
package org.lxh;
import org.lxh.*;
interface Suan{
public int add(int cou);
public int dec(int cou); }class Count extends Person implements Suan{
private int balance;
private int ka;
static int c3,c4;
int c1,c2;
public Count(){}
public Count(String name,String sex,int ka,int balance){
super(name,sex);
this.balance=balance;
this.ka=ka;
}
public int getBalance(){
return this.balance;
}
public void setBalance(int balance){
this.balance=balance;
}
public int getKa(){
return this.ka;
}
public void setKa(int ka){
this.ka=ka;
} public void tell(){
System.out.println("名字:"+getName()+" "+"卡号:"+getKa()+" "+"性别:"+getSex()+" 余额:"+getBalance());}public int add(int cou){
Count c1=this;
c3=c1.balance+cou;
if(c3<3000)
return c3;
else return -1;
}public int dec(int cou){
Count c2=this;
c4=c2.balance-cou;
if(c4>0)
return c4;
else return -1;}
}
文件2:
package org.lxh;
import org.lxh.*;
class Date{
private int year;
private int month;
private int day;
public Date(){}
public Date(int year,int month,int day){
this.setYear(year);
this.setMonth(month);
this.setDay(day);
}
public int getYear(){
return year;
}
public int getMonth(){
return month;
}
public int getDay(){
return day;
}
public void setYear(int a){
year=a;
}
public void setMonth(int b){
if(b>0&&b<13){
month=b;}
}
public void setDay(int c){
if(c>0&&c<32){
day=c;}
}
public void tell(){
System.out.println("出生日期:"+getYear()+"年"+getMonth()+"月"+getDay()+"日");
}
}
文件3
package org.lxh;
import org.lxh.*;
class Person{
private String name;
private String sex;
public Person(){}
public Person(String name,String sex){
this.setName(name);
this.setSex(sex);
}
public String getName(){
return name;
}
public String getSex(){
return sex;
}
public void setName(String a){
name=a;
}
public void setSex(String c){
sex=c;
}
public void tell(){
System.out.println("名字:"+getName()+" "+"性别:"+getSex());
}
}
文件4
package org.lxh;
import org.lxh.*;
class Student extends Person{
private int snum;
public Student(){}
public Student(String name,int snum,String sex){
super(name,sex);
this.snum=snum;}
public int getSnum(){
return snum;
}
public void setSnum(int b){
snum=b;
}
public void tell(){
System.out.println("名字:"+getName()+" "+"学号:"+getSnum()+" "+"性别:"+getSex());}
}
文件5package org.lxh;
import org.lxh.*;public class Zuo04{
public static void main(String[] args){
Date d=new Date(1992,10,25);
Student t=new Student("杨庆磊",10846,"男");
Count c=new Count("杨庆磊","男",11110,2500);
t.tell();
d.tell();
try{
String str1=args[0];String str2=args[1];String str3=args[2];
System.out.println("所选课程为:"+str1+str2+str3);
}catch(Exception e){
System.out.print("出现异常:"+e);}
c.tell();
if(c.add(100)==-1)
System.out.println("存款不能超过3000,请重新存入");
else System.out.println("存款之后金额为:"+c.add(100));
if(c.dec(2000)==-1)
System.out.println("余额不足,请重新输入");
else System.out.println("取款之后金额为:"+c.dec(2000)); }
}
我的具体程序是文件1:
package org.lxh;
import org.lxh.*;
interface Suan{
public int add(int cou);
public int dec(int cou); }class Count extends Person implements Suan{
private int balance;
private int ka;
static int c3,c4;
int c1,c2;
public Count(){}
public Count(String name,String sex,int ka,int balance){
super(name,sex);
this.balance=balance;
this.ka=ka;
}
public int getBalance(){
return this.balance;
}
public void setBalance(int balance){
this.balance=balance;
}
public int getKa(){
return this.ka;
}
public void setKa(int ka){
this.ka=ka;
} public void tell(){
System.out.println("名字:"+getName()+" "+"卡号:"+getKa()+" "+"性别:"+getSex()+" 余额:"+getBalance());}public int add(int cou){
Count c1=this;
c3=c1.balance+cou;
if(c3<3000)
return c3;
else return -1;
}public int dec(int cou){
Count c2=this;
c4=c2.balance-cou;
if(c4>0)
return c4;
else return -1;}
}
文件2:
package org.lxh;
import org.lxh.*;
class Date{
private int year;
private int month;
private int day;
public Date(){}
public Date(int year,int month,int day){
this.setYear(year);
this.setMonth(month);
this.setDay(day);
}
public int getYear(){
return year;
}
public int getMonth(){
return month;
}
public int getDay(){
return day;
}
public void setYear(int a){
year=a;
}
public void setMonth(int b){
if(b>0&&b<13){
month=b;}
}
public void setDay(int c){
if(c>0&&c<32){
day=c;}
}
public void tell(){
System.out.println("出生日期:"+getYear()+"年"+getMonth()+"月"+getDay()+"日");
}
}
文件3
package org.lxh;
import org.lxh.*;
class Person{
private String name;
private String sex;
public Person(){}
public Person(String name,String sex){
this.setName(name);
this.setSex(sex);
}
public String getName(){
return name;
}
public String getSex(){
return sex;
}
public void setName(String a){
name=a;
}
public void setSex(String c){
sex=c;
}
public void tell(){
System.out.println("名字:"+getName()+" "+"性别:"+getSex());
}
}
文件4
package org.lxh;
import org.lxh.*;
class Student extends Person{
private int snum;
public Student(){}
public Student(String name,int snum,String sex){
super(name,sex);
this.snum=snum;}
public int getSnum(){
return snum;
}
public void setSnum(int b){
snum=b;
}
public void tell(){
System.out.println("名字:"+getName()+" "+"学号:"+getSnum()+" "+"性别:"+getSex());}
}
文件5package org.lxh;
import org.lxh.*;public class Zuo04{
public static void main(String[] args){
Date d=new Date(1992,10,25);
Student t=new Student("杨庆磊",10846,"男");
Count c=new Count("杨庆磊","男",11110,2500);
t.tell();
d.tell();
try{
String str1=args[0];String str2=args[1];String str3=args[2];
System.out.println("所选课程为:"+str1+str2+str3);
}catch(Exception e){
System.out.print("出现异常:"+e);}
c.tell();
if(c.add(100)==-1)
System.out.println("存款不能超过3000,请重新存入");
else System.out.println("存款之后金额为:"+c.add(100));
if(c.dec(2000)==-1)
System.out.println("余额不足,请重新输入");
else System.out.println("取款之后金额为:"+c.dec(2000)); }
}
windows对应的文件夹
最好给出classpath的设置,你的当前路径和执行程序的方法,以便进一步判断。
public int add(int cou); public int dec(int cou);
}class Count extends Person implements Suan {
private int balance;
private int ka;
static int c3, c4;
int c1, c2; public Count() {
} public Count(String name, String sex, int ka, int balance) {
super(name, sex);
this.balance = balance;
this.ka = ka;
} public int getBalance() {
return this.balance;
} public void setBalance(int balance) {
this.balance = balance;
} public int getKa() {
return this.ka;
} public void setKa(int ka) {
this.ka = ka;
} public void tell() {
System.out.println("名字:" + getName() + " " + "卡号:" + getKa() + " "
+ "性别:" + getSex() + " 余额:" + getBalance());
} public int add(int cou) {
Count c1 = this;
c3 = c1.balance + cou;
if (c3 < 3000)
return c3;
else
return -1;
} public int dec(int cou) {
Count c2 = this;
c4 = c2.balance - cou;
if (c4 > 0)
return c4;
else
return -1;
}
}class Date {
private int year;
private int month;
private int day; public Date() {
} public Date(int year, int month, int day) {
this.setYear(year);
this.setMonth(month);
this.setDay(day);
} public int getYear() {
return year;
} public int getMonth() {
return month;
} public int getDay() {
return day;
} public void setYear(int a) {
year = a;
} public void setMonth(int b) {
if (b > 0 && b < 13) {
month = b;
}
} public void setDay(int c) {
if (c > 0 && c < 32) {
day = c;
}
} public void tell() {
System.out.println("出生日期:" + getYear() + "年" + getMonth() + "月"
+ getDay() + "日");
}
}class Person {
private String name;
private String sex; public Person() {
} public Person(String name, String sex) {
this.setName(name);
this.setSex(sex);
} public String getName() {
return name;
} public String getSex() {
return sex;
} public void setName(String a) {
name = a;
} public void setSex(String c) {
sex = c;
} public void tell() {
System.out.println("名字:" + getName() + " " + "性别:" + getSex());
}
}class Student extends Person {
private int snum; public Student() {
} public Student(String name, int snum, String sex) {
super(name, sex);
this.snum = snum;
} public int getSnum() {
return snum;
} public void setSnum(int b) {
snum = b;
} public void tell() {
System.out.println("名字:" + getName() + " " + "学号:" + getSnum() + " "
+ "性别:" + getSex());
}
}public class Zuo04 {
public static void main(String[] args) {
Date d = new Date(1992, 10, 25); Student t = new Student("杨庆磊", 10846, "男");
Count c = new Count("杨庆磊", "男", 11110, 2500);
t.tell();
d.tell();
try {
String str1 = args[0];
String str2 = args[1];
String str3 = args[2];
System.out.println("所选课程为:" + str1 + str2 + str3);
} catch (Exception e) {
System.out.println("出现异常:" + e);
}
c.tell();
if (c.add(100) == -1)
System.out.println("存款不能超过3000,请重新存入");
else
System.out.println("存款之后金额为:" + c.add(100)); if (c.dec(2000) == -1)
System.out.println("余额不足,请重新输入");
else
System.out.println("取款之后金额为:" + c.dec(2000));
}
}