Java Employee Management System exercises (not to be continued)

Employee management system features include:

1, add new employees;

2. Display the information of an employee;

3, display all employee information;

4, revise employee salary;

5. Delete an employee.

The code is as follows:

1  Packagetest;2 ImportJava.io.*;3 ImportJava.util.*;4  Public classManagesystem {5 6      Public Static voidMain (string[] args)throwsioexception{7         //TODO auto-generated Method Stub8         9HashMap hm=NewHashMap ();Ten          while(true) One         { ASystem.out.println ("Select the action you want to take:"); -System.out.println ("1 means Add new employee"); -System.out.println ("2 indicates that an employee information is displayed"); theSystem.out.println ("3 means show all employee information"); -System.out.println ("4 means modified employee salary"); -System.out.println ("5 means delete an employee"); -System.out.println ("6 means exit program"); +InputStreamReader isr=NewInputStreamReader (system.in); -BufferedReader br=NewBufferedReader (ISR); +             intInputnum = 0; A             Try at             { -inputnum=Integer.parseint (Br.readline ()); -}Catch(Exception e) -             { -System.out.println ("Please enter integer 1~6"); - e.printstacktrace (); in             } -             to             Switch(Inputnum) +             { -              Case1: theAddclerk addclerk=NewAddclerk (); * Addclerk.add (HM); $                  Break;Panax Notoginseng              Case2: -Showinfo showinfo=Newshowinfo (); the Showinfo.show (HM); +                  Break; A              Case3: the                  +                  Break; -              Case4: $          $                  Break; -              Case5: -          the                  Break; -              Case6:WuyiSystem.exit (0); the                  Break; -             } Wu         }         -     } About  $ } -  - classAddclerk - { A      Public voidAdd (HashMap HM)throwsIOException +     { theSystem.out.println ("Please enter the employee number to be added:"); -InputStreamReader isr=NewInputStreamReader (system.in); $BufferedReader br=NewBufferedReader (ISR); theClerk clerk=Newclerk (); theString temp=br.readline (); the Clerk.setclerkno (temp); theSystem.out.println ("Please enter the name of the employee you want to add:"); - Clerk.setname (Br.readline ()); inSystem.out.println ("Please enter the employee salary to be added:"); the clerk.setsalary (Integer.parseint (Br.readline ())); the Hm.put (Temp,clerk); AboutSystem.out.println ("Add success: \ n" the+ ((Clerk) (Hm.get (temp))). Getclerkno () + "," the+ ((Clerk) (Hm.get (temp))). GetName () + "," the+ ((Clerk) (Hm.get (temp))). Getsalary () + "\ n"); +     } - } the Bayi classShowinfo the { the      Public voidShow (HashMap HM)throwsIOException -     { -System.out.println ("Please enter the employee number to find:"); theInputStreamReader isr=NewInputStreamReader (system.in); theBufferedReader br=NewBufferedReader (ISR); theString temp=br.readline (); the         if(Hm.containskey (temp)) -         { theSYSTEM.OUT.PRINTLN ("The employee's information is:" the+ ((Clerk) (Hm.get (temp))). Getclerkno () + "," the+ ((Clerk) (Hm.get (temp))). GetName () + ","94+( (Clerk) (Hm.get (temp))). Getsalary ()); the}Else the         { theSystem.out.println ("No staff! ");98         } About System.out.println (); -     }101 }102 103 classClerk104 { the     PrivateString Clerkno;106     PrivateString name;107     Private intsalary;108     109      PublicString Getclerkno () { the         returnClerkno;111     } the      Public voidSetclerkno (String clerkno) {113          This. Clerkno =Clerkno; the     } the      PublicString GetName () { the         returnname;117     }118      Public voidsetName (String name) {119          This. Name =name; -     }121      Public intgetsalary () {122         returnsalary;123     }124      Public voidSetsalary (intsalary) { the          This. Salary =salary;126     }127}

The results of the demo run are as follows:

1 Please select the action you want to take:2 1 means adding a new employee3 2 indicates that an employee information is displayed4 3 indicates all employee information is displayed5 4 means to revise employee salary6 5 means to delete an employee7 6 means exiting the program819 Please enter the employee number to be added:Ten s001 One Please enter the name of the employee you want to add: A Farong - Please enter the employee salary to be added: -1200 the Add success: -S001, Farong, 1200 -  - Please select the action you want to take: + 1 means adding a new employee - 2 indicates that an employee information is displayed + 3 indicates all employee information is displayed A 4 means to revise employee salary at 5 means to delete an employee - 6 means exiting the program -2 - Please enter the employee number to find: - s001 -The employee's information is: s001, Farong, 1200 in  - Please select the action you want to take: to 1 means adding a new employee + 2 indicates that an employee information is displayed - 3 indicates all employee information is displayed the 4 means to revise employee salary * 5 means to delete an employee $6 means exiting the program

Java Employee Management System exercises (not to be continued)