JSP Student score Management system code

JSP tutorial Student performance management system code

Import java.util.*;
Import java.io.IOException;
Import java.io.*;

Class student
{
int no;
String name;
Double Chengji;
Public student ()
{};
public student (int no,string name,double Chengji)
{
This.no=no;
This.name=name;
This.chengji=chengji;
}
public int Getno ()
{
return no;
}
Public String GetName ()
{
return name;
}
Public double Getchengji ()
{
return Chengji;
}
public void Setno (int no)
{
This.no=no;
}
public void SetName (String name)
{
This.name=name;
}
public void Setchengji (double chengji)
{
This.chengji=chengji;
}
}

Class Allstudent
{
static int n;
Student p;
Static
{
n=0;
}
}

public class Student3
{
Static allstudent[] Q=new allstudent[100];

public static void cover ()
{
System.out.println ("nnnn");
System.out.println ("TTTT Student performance Management system NN");
System.out.println ("tttt version number 1.0n");
System.out.println ("nnnnnn");
System.out.println ("Tttt 2009.06.04nn");
System.out.println ("Tttt Du Yongpeng n");

}

public static void menu ()
{
System.out.println ("TTTT Student Performance Management System");
System.out.println ("Tttt 1"). Input ");
System.out.println ("Tttt 2"). Display ");
System.out.println ("TTTT 3"). Delete ");
System.out.println ("Tttt 4"). Modification ");
System.out.println ("TTTT 5"). Insert ");
System.out.println ("TTTT 6"). Sort ");
System.out.println ("Tttt 7"). Storage ");
System.out.println ("Tttt 8"). Read ");
System.out.println ("Tttt 0"). Exit ");
System.out.println ("Tttt Please enter the action to be performed:");
}

public static void input ()
{
SYSTEM.OUT.PRINTLN ("Please input class number");
Scanner sc=new Scanner (system.in);
Allstudent.n=sc.nextint ();
Boolean t;
int Sno;
Double Scheng;
String sname;
for (int i=0;i<allstudent.n;i++)
{
SYSTEM.OUT.PRINTLN ("Input" + (i+1) + "Student data (school number, name, grade)");
Sno=sc.nextint ();
Sname=sc.next ();
Scheng=sc.nextdouble ();
Q[i].p=new student (Sno,sname,scheng);
}
}

public static void disp ()
{
System.out.print ("School Number");
System.out.print ("t name");
System.out.println ("T grade");
for (int i=0;i<allstudent.n;i++)
System.out.println ("" "+q[i].p.no+" T "+q[i].p.name+" T "+q[i].p.chengji);
}

public static void Dele ()
{  
  int i
  Boolean t;
  SYSTEM.OUT.PRINTLN ("Please Lose Into the deletion student student number ");
  Scanner sc=new Scanner (system.in);
  do
  {
I=sc.nextint ()
  if (I>ALLSTUDENT.N)
  {  
System.out . println ("Input error, please re-enter");
  T=true;
 }
  Else
  {
T=false
 }
 }
  while (t),
  for (; I<allstudent. n;i++)
  { 
  q[i-1].p.name=q[i].p.name
  q[i-1].p.no=q[i].p.no;
  Q[i-1]. P.chengji=q[i].p.chengji;
 }
  allstudent.n--;
  SYSTEM.OUT.PRINTLN (delete succeeded.) ");
}

public static void sort ()
{
  allstudent[] t=new allstudent[1];
  t[0]=new allstudent ();
&nbs P for (int i=0;i<allstudent.n;i++)
  {
  for (int j=i+1,k=i;j<allstudent.n;j++)
  {
& nbsp if (Q[i].p.chengji>q[j].p.chengji)
  {
  t[0]=q[i];
  Q[I]=Q[J];
  q[j]=t[0];
 }
 }
 }
  System.out.println ("sorted out");  
}  
   ; 
public static void Insert ()
{
  int N=ALLSTUDENT.N
  System.out.println ("Enter the new Student Information" (School number, Name, Grade) ");
  Scanner sc=new Scanner (system.in);
  Q[n].p.no=sc.nextint ();
  Q[n].p.name=sc.next ();
  Q[n].p.chengji=sc.nextint ();
  allstudent.n++;
}

public static void Update ()
{
int i;
Boolean t;
Scanner sc=new Scanner (system.in);
System.out.println ("n Modify the grades of the first few students?") ");
Todo
{
I=sc.nextint ();
if (I>ALLSTUDENT.N)
{
SYSTEM.OUT.PRINTLN ("Input error, please re-enter");
T=true;
}
Else
{
T=false;
}
}
while (t);
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
System.out.println ("Enter student data (school number, name, grade)");
Q[i-1].p.no=sc.nextint ();
Q[i-1].p.name=sc.next ();
Q[i-1].p.chengji=sc.nextint ();
System.out.println ("n" +i+) students ' grades have been revised. ");
}

public static void Main (string[] args)
{

for (int i=0;i<100;i++)
{q[i]=new allstudent ();
Q[i].p=new student ();}
Cover ();
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
int number;
Scanner sc=new Scanner (system.in);
Todo
{
menu ();
Number=sc.nextint ();
Switch (number)
{
Case 1:
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Input ();
System.out.println ("Press any key to continue");
Try
{
System.in.read ();
catch (IOException e) {}
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Break
Case 2:
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Disp ();
System.out.println ("Press any key to continue");
Try
{
System.in.read ();
catch (IOException e) {}
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Break
Case 3:
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Dele ();
System.out.println ("Press any key to continue");
Try
{
System.in.read ();
catch (IOException e) {}
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Break
Case 4:
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Update ();
System.out.println ("Press any key to continue");
Try
{
System.in.read ();
catch (IOException e) {}
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Break
Case 5:
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Insert ();
System.out.println ("Press any key to continue");
Try
{
System.in.read ();
catch (IOException e) {}
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Break
Case 6:
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Sort ();
System.out.println ("Press any key to continue");
Try
{
System.in.read ();
catch (IOException e) {}
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
Break

Case 0:
System.exit (0);
Default
System.out.println ("nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn");
System.out.println ("Re-enter code.) n ");
}
}
while (number!=0);
}
}