这是基类Employee代码
public class Employee {
private String name;
private int age;
private String address;
private String EmpId;
private double salary;
public Employee(String name,int age,String address,String EmpId,double salary) {
this.name=name;
this.age=age;
this.address=address;
this.EmpId=EmpId;
this.salary=salary;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getEmpId() {
return EmpId;
}
public void setEmpId(String empId) {
EmpId = empId;
}
public double getSalary() {
return salary;
}
public void setSalary(double salary) {
this.salary = salary;
}
}
这里软件员工扩展这个基类
public class SoftwareEmployee extends Employee{
private String skillSet;
public SoftwareEmployee(String name,int age,String address,String EmpId,double salary,String
skillSet) {
super(name,age,address,EmpId,salary);
this.skillSet=skillSet;
}
public String getSkillSet() {
return skillSet;
}
public void setSkillSet(String skillSet) {
this.skillSet = skillSet;
}
}
也金融员工被延伸基类中的代码是：
public class FinanceEmployee extends Employee {
private String Degree;
public FinanceEmployee(String name,int age,String address,String EmpId,double salary,String Degree) {
super(name,age,address,EmpId,salary);
this.Degree=Degree;
}
public String getDegree() {
return Degree;
}
public void setDegree(String degree) {
Degree = degree;
}
}
这不能写入到外部文件。此外控制台未等我，然后再插入年龄名。它仅仅是在同一时间打印的姓名和年龄的一次，然后再两件事情。我是很新的这一点。
这是我的主类
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Scanner;
public class Main {
public static void main(String[] args) throws IOException {
Scanner sc = new Scanner(System.in);
//File file = new File("C:\\Users\\AK078479\\Documents\\newfile.txt");
FileWriter fWriter = new FileWriter("C:\\Users\\AK078479\\Documents\\newfile.txt");
//BufferedWriter writer = null;
Employee employee=new Employee(null, 0, null, null, 0);
SoftwareEmployee sftemp=new SoftwareEmployee(null, 0, null, null, 0, null);
FinanceEmployee fncemp=new FinanceEmployee(null, 0, null, null, 0, null);
System.out.println("You are "+"\n"+"1.Reviewer"+"\n"+"2.Data Entry Operator");
int choice = sc.nextInt();
switch(choice) {
case(1):
System.out.println("Do you want to see a"+ "\n" + "1.Particular record"+"\n"+"2.All
records");
int value=sc.nextInt();
switch(value) {
case(1):
}
break;
case(2):
System.out.println("Employee is a "+"\n"+"1.Software Employee"+"\n"+"2.Finance
Employee");
int num =sc.nextInt();
switch(num) {
case(2):
try {
//String s="Finance Employee";
//writer.write(s);
//writer.newLine();
int n=2;
while(n>0) {
//writer = new BufferedWriter(fWriter);
System.out.println("Enter name");
String text = sc.next();
fncemp.setName(text);
fWriter.write(text);
//fWriter.newLine();
System.out.println("Enter age");
int age=sc.nextInt();
fncemp.setAge(age);
fWriter.write(age);
//writer.newLine();
System.out.println("Enter address");
String add = sc.nextLine();
fncemp.setAddress(add);
fWriter.write(add);
//fwriter.newLine();
System.out.println("Enter EmpId");
String emplId = sc.nextLine();
fncemp.setEmpId(emplId);
fWriter.write(emplId);
//writer.newLine();
System.out.println("Enter salary");
double sal = sc.nextDouble();
fncemp.setSalary(sal);
fWriter.write((int) sal);
//writer.newLine();
System.out.println("Enter degree");
String degree = sc.nextLine();
fncemp.setDegree(degree);
fWriter.write(degree);
//writer.newLine();
n--;
}
} catch (Exception e) {
System.out.println("Error!");
}
break;
case(1):
try {
//String st="Software Employee";
//writer.write(st);
// writer.newLine();
int n=2;
while(n>0) {
//fWriter = new FileWriter(file);
//writer = new BufferedWriter(fWriter);
System.out.println("Enter name");
//String text = sc.nextLine();
sftemp.setName(sc.nextLine());
fWriter.write(sftemp.getName());
//fWriter.newLine();
System.out.println("Enter age");
int age=sc.nextInt();
sftemp.setAge(age);
fWriter.write(age);
//fWriter.newLine();
System.out.println("Enter address");
String add = sc.nextLine();
sftemp.setAddress(add);
fWriter.write(add);
//writer.newLine();
System.out.println("Enter EmpId");
String emplId = sc.nextLine();
sftemp.setEmpId(emplId);
fWriter.write(emplId);
//writer.newLine();
System.out.println("Enter salary");
double sal = sc.nextDouble();
sftemp.setSalary(sal);
fWriter.write((int) sal);
//writer.newLine();
System.out.println("Enter skill Set");
String skill = sc.nextLine();
sftemp.setSkillSet(skill);
fWriter.write(skill);
//writer.newLine();
n--;
}
} catch (Exception e) {
System.out.println("Error!");
}
break;
default:
System.out.println("Try again");
}
break;
default:
System.out.println("Try again");
}
}
}
使用扫描仪方法后nextInt()，你应该调用nextLine()一个更多的时间，然后才能阅读的字符串。其原因是，你调用后nextInt跟踪你的输入流中的位置经过整数，但就在新行字符前停止扫描仪内部光标。当你调用nextLine()扫描仪将空字符串和移动刚刚回归到下一行，所以才有了接下来的nextLine()调用将返回你的号码后进入非空字符串。因此，这里的例子：
System.out.println("You are "+"\n"+"1.Reviewer"+"\n"+"2.Data Entry Operator");
int choice = sc.nextInt();
switch(choice)
您需要添加：
System.out.println("You are "+"\n"+"1.Reviewer"+"\n"+"2.Data Entry Operator");
int choice = sc.nextInt();
sc.nextLine(); // Skip the end of line and prepare to read something from the next line
switch(choice)
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我来说两句