Simple CRM Employee Management system

Using the previous study, the use of object-oriented and collection to make a simple CRM operating system.

Create a new employee's Information entry class:

Public class ygong {private int id;private string name;private double  gongzi;public void setid (int id) {this.id=id;} Public int getid () {return id;} Public void setname (string name) {this.name=name;} Public string getname () {return name;} Public void setgongzi (Double gongzi) {This.gongzi=gongzi;} Public double getgongzi () {Return gongzi;} Public string tostring () {return this.id+ " " +this.name+ " " +this.gongzi;}} Create a new class, write the CRM system of the specific operation method: Public class operation {scanner sc=new scanner (system.in); Ygong p=new ygong (); Arraylist list=new arraylist ();//New Employee Information Method Public void add () {Ygong t=new ygong (); System.out.println ("Please enter employee work number"); T.setid (Sc.nextint ()); System.out.println ("Please enter employee name"); T.setname (Sc.next ()); System.out.println ("Please enter employee's salary"); T.setgongzi (sc.nextdouble); List.add (t); System.out.println ("New Success");} Query an employee method Public void query () {System.out.println ("Enter the worker number for the query:"); Int num=sc.nextint ();int  Index=-1;for (Int i=0;i<list.size (); i++) {ygong s= (Ygong)  list.get (i);   //forced transformation if ( S.getid () ==num) {index=i;}} if (index!=-1) {System.out.println (List.get (index));} ELSE{SYSTEM.OUT.PRINTLN ("no Employee");}} Query all Employee Methods Public void queryall () {for (Int i=0;i<list.size (); i++) {System.out.println (List.get ( i));}} Modify Employee Payroll Method Public void updatemoney () {System.out.println ("Enter the employee number for the query:"); Int num=sc.nextint (); int  index=-1;for (Int i=0;i<list.size (); i++) {ygong s= (Ygong)  list.get (i); if (S.getId () ==num) {index=i;}} if (index!=-1) {System.out.println ("Please enter a newly modified salary");d ouble num2=sc.nextdouble (); Ygong s= (Ygong)  list.get (index); S.setgongzi (num2); List.set (index, s); SYSTEM.OUT.PRINTLN ("modified successfully");} ELSE{SYSTEM.OUT.PRINTLN ("no Employee");}} Delete Employee Information Method Public void delete () {System.out.println ("Enter the worker number for the query:"); Int num=sc.Nextint (); Int index=-1;for (Int i=0;i<list.size (); i++) {ygong s= (Ygong)  list.get (i); if ( S.getid () ==num) {index=i;}} if (index!=-1) {list.remove (index); System.out.println ("delete succeeded");} ELSE{SYSTEM.OUT.PRINTLN ("no Employee");}} Sorting method Public void paixu () {arraylist li=new arraylist (); Li.addall (list);// Use a new list collection to receive the contents of the previous collection for (Int i=0;i<li.size (); i++) {//select sort for (Int j=i+1;j<li.size (); j + +) {Ygong  e= (Ygong)  li.get (i); Ygong s= (Ygong)  li.get (j); if (E.getgongzi () <s.getgongzi ()) {li.set (i, s); Li.set (j, e);}} For (Int i=0;i<li.size (); i++) {System.out.println (Li.get (i));}} Statistical Method Public void tongji () {double max=0;double min=0;double sum=0;for (int i=0;i <list.size (); i++) {ygong s= (Ygong)  list.get (i); if (i==0) {Max=s.getgongzi (); Min=s.getgongzi ();} if (S.getgongzi () >max) {Max=s.getgongzi ();} Else if (S.getgongzi () <min) {Min=s.getgongzi ();} Sum+=s.getgongzi ();} SYSTEM.OUT.PRINTLN ("Employee's maximum wageIs "+max+" the minimum wage is "+min+" the average wage is "+sum/list.size ());}} Finally, Main method: Public class main {public static void main (String[] args)  {  todo auto-generated method stubscanner sc=new scanner (System.in); operation  p=new operation (); System.out.println ("Welcome to Employee management system"); for (;;) {System.out.println ("Please select Action item: 1, add 2, Query 3, query all 4, modify 5, delete" +  "6, sort 7, Count 8, exit"); Int num=sc.nextint (); if (num==1 ) {p.add ();} Else if (num==2) {p.query ();} Else if (num==3) {P.queryall ();} Else if (num==4) {P.updatemoney ();} Else if (num==5) {p.delete ();} Else if (num==6) {P.paixu ();} Else if (num==7) {P.tongji ();} Else{system.out.println ("Good-Bye");}}}

Simple CRM Employee Management system