Mini DVD Manager

Create a new package first class

Package DVD;

public class Dvdset {
String[] Name=new string[50];
Boolean[] State =new boolean[50];
String[] Date=new string[50];
Int[] Count=new int[50];

}

A second class

Package DVD;

Import java.text.ParseException;
Import Java.text.SimpleDateFormat;
Import java.util.*;

public class Dvdmgr {
Scanner input= New Scanner (system.in);
Dvdset dvd=new Dvdset ();//Initialize Object
Boolean isjiechu=true;
public void initial () {
dvd.name[0]= "Roman Holidays";
Dvd.state[0]=true;
Dvd.date[0]= "2015-12-31";

Dvd.name[1]= "jittery";
Dvd.state[1]=false;
dvd.name[2]= "romantic Full House";
Dvd.state[2]=false;
}
public void Rentrnmain () {
SYSTEM.OUT.PRINTLN ("Input 0 return");
if (Input.nextint () ==0) {
StartMenu ();
}
}
public void StartMenu () {
SYSTEM.OUT.PRINTLN ("\t\t\t welcome into the Mini DVD manager");
System.out.println ("------------------------------------------------------------------------------------------" );
System.out.println ("\t\t0. Loan leaderboard");
System.out.println ("\t\t1. New DVD");
System.out.println ("\t\t2. View DVD");
System.out.println ("\t\t3. Delete DVD");
System.out.println ("\t\t4. Loan DVD");
System.out.println ("\t\t5. return DVD");
System.out.println ("\t\t6. Exit");
System.out.println ("------------------------------------------------------------------------------------------" );
SYSTEM.OUT.PRINTLN ("Please select");
int Choice=input.nextint ();
Switch (choice) {
Case 0:
List ();
Break
Case 1:
Add ();
Break
Case 2:
CK ();//View DVD
Break
Case 3:
Del ();
Break
Case 4:
Lend ();
Break
Case 5:
GH ();
break;//return DVD
Case 6:
SYSTEM.OUT.PRINTLN ("Thank you for using");
Break
Default
SYSTEM.OUT.PRINTLN ("Please re-enter" If you enter it incorrectly);
Returnmain ();
}
}

public void Returnmain () {
SYSTEM.OUT.PRINTLN ("Input 0 return");
if (Input.nextint () ==0) {
StartMenu ();
}
}
/*
* Leaderboard
*/

public void list () {
string[] newname=new string[50];
int[] Newcount=new int [50];
for (int i=0;i<dvd.name.length;i++) {
Newname[i]=dvd.name[i];
Newcount[i]=dvd.count[i];
}
for (int i=0;i<newname.length;i++) {
for (int j=i+1;j<newname.length;j++) {
if (newcount[i]> Newcount[j]) {
int TEMP=NEWCOUNT[I];//2 interchange implementation number and first name substitution
Newcount[i]=newcount[j];
Newcount[j]=temp;
String Temp1=newname[i];
Newname[i]=newname[j];
Newname[j]=temp1;
}
}
}
System.out.println ("-----< Next >-----");
System.out.println ("------------------------------------------------------------------------------------------" );
System.out.println ("the number \ t name");
/*
* Reverse Print ranking
*/
for (int i=newname.length-1;i>=0;i--) {
if (newname[i]!=null) {
System.out.println (newcount[i]+ "\ T" "+newname[i]+" ");
}
}
System.out.println ("----------------------------------------------------------------------------- -------------");
Returnmain ();
}

/* NEW DVD
*
*/

public void Add () {
System.out.println ("new DVD");
System.out.println ("Please enter the DVD name");
String Name=input.next ();
for (int i=0;i<dvd.name.length;i++) {
/*
* Determines whether the array of name positions is empty
*/
if (dvd.name[i]==null) {
Dvd.name[i]=name;
dvd.state[i]=false;//newly added is no contact.
System.out.println ("New +name+" "Success");
Break
}
}
System.out.println ("------------------------------------------------------------------------------------------" );
Returnmain ();

}

/*
* View DVD
*/
public void ck () {
System.out.println ("View DVD");
System.out.println ("ordinal \ t status \ t name \t\t loan Date");
for (int i = 0; i < dvd.name.length; i++) {
if (dvd.name[i] = = null) {
Break
} else if (dvd.state[i] = = True) {
System.out.println ((i + 1) + "\ t has lent \ t" + dvd.name[i] + "" + "\ T" + dvd.date[i]);
} else if (dvd.state[i] = = False) {
System.out.println ((i + 1) + "\ t can borrow \ T" + dvd.name[i] + "" ");
}
}
System.out.println ("------------------------------------------------------------------------------------------" );
Returnmain ();
}

/*
* Delete DVD
*/

public void Del () {
System.out.println ("delete DVD");
System.out.println ("Please enter the name of the DVD to be deleted");
String name =input.next ();
Boolean flag=false;
for (int i=0;i<dvd.name[i].length (); i++) {
if (dvd.name[i]!=null&&dvd.name[i].equalsignorecase (name) &&dvd.state[i]==false) {
int j=i;
while (Dvd.name[j+1]!=null) {
DVD.NAME[J]=DVD.NAME[J+1];
DVD.DATE[J]=DVD.DATE[J+1];
j + +;
}
Dvd.name[j]=null;
Dvd.date[j]=null;
SYSTEM.OUT.PRINTLN ("Successful deletion of" +name+ "");
flag=true;//Marking Bits
Break
}
else if (dvd.name[i]!=null&&dvd.name[i].equalsignorecase (name) &&dvd.state[i]==true) {
System.out.println ("This DVD is out of loan status, cannot be deleted");
Flag=true;
Break

}
if (flag==true) {
SYSTEM.OUT.PRINTLN ("No information found, please verify");
}
}
System.out.println ("------------------------------------------------------------------------------------------" );
Returnmain ();
}

/*
* Lend out
*/

public void lend () {
System.out.println ("Loan DVD");
System.out.println ("Please enter the name of the loan DVD");
String name =input.next ();
for (int i=0;i<dvd.name.length;i++) {
if (dvd.name[i]==null) {
System.out.println ("No matching information found");
Break
}
Else if (dvd.name[i].equals (name) &&dvd.state[i]==false) {
System.out.println ("Please enter a loan date (year-month-day)" );
Dvd.date[i]=input.next ();
System.out.println ("+name+", "the success of the loan");
Dvd.state[i]=true;
dvd.count[i]++;
break;
}
Else if (dvd.name[i].equals (name) &&dvd.state[i]==true) {
System.out.println ("Sorry" +name+ " Already lent ");
break;

}
}
System.out.println ("------------------------------------------------------------------------- -----------------");
Returnmain ();
}
//gh

public void gh () {
System.out.println ("return DVD");
System.out.println ("Please enter the DVD name");
String Name=input.next ();
Long loan=0;//rent
for (int i=0;i<dvd.name.length;i++) {
if (dvd.name[i]==null) {
System.out.println (" No matching information found ");
break;
}
Else if (dvd.name[i].equals (name) &&dvd.state[i]==true) {
System.out.println ("Please enter return date (year-month-day)") ;
String Redate=input.next ();
Loan=charge (dvd.date[i],redate);
System.out.println ("Return" +name+ "success");
Dvd.state[i]=false;
System.out.println ("Loan date is" +dvd.date[i]);
System.out.println ("Return date is" +redate);
System.out.println ("Rent payable (Yuan):" +loan);
break;
}
Else if (dvd.name[i].equals (name) &&dvd.state[i]==false) {
System.out.println ("+name+" is not loaned , please verify ");
break;
}
}
System.out.println ("----------------------------------------------------------------------------- -------------");
Returnmain ();
}
/*
* Billing class
*/

Public long Charge (String dstr1,string dstr2) {
Long charge=0;
SimpleDateFormat sd=new SimpleDateFormat ("Yyyy-mm-dd");
try{
Date D1=sd.parse (DSTR1);
Date D2=sd.parse (DSTR2);
Charge= (D2.gettime ()-d1.gettime ())/(24*30*30*1000);
}catch (ParseException e) {
E.printstacktrace ();
}
return charge;
}

}

Third class//test

Package DVD;

public class Test {

/**
* @param args
*/
public static void Main (string[] args) {
TODO auto-generated Method Stub
Dvdmgr test=new dvdmgr ();
Test.initial ();
Test.startmenu ();
}

}

Mini DVD Manager