help on array searching

[mfshake]

I am try to make the user enter name and password then ask them if they want to search. The menu has the options and i am having trouble with the search method. Here's my server:

[CODE=java]import java.util.Scann er;

public class StudentPassword {

static Scanner reader = new Scanner (System.in);
private int option;//the user option
private int count = 0;//the count
private String names[] = new String [50];
private int passwords[] = new int [50];

public StudentPassword (){

while(true){
setOption();
selection();
}//close whlie
}//close main

public int menu()
{
while(true){
String menu = "----------\n1)Enter name and password\n2)Sea rch"
+ "\n3)Print\n4)Q uit\nMake a selection: ";
try{
System.out.prin t(menu);
option = reader.nextInt( );
if(option >= 1 && option <= 4){
reader.nextLine ();//CONSUME EXTRA CHARACTER
break;
}else{
System.out.prin t("\nEnter a number answer");
reader.nextLine ();
}//close if
}catch(Exceptio n e){
System.out.prin t("\nEnter a valid answer");
reader.nextLine ();
}//exception
}//close whlie
return option;
}//close menu

public void setOption()
{
option = menu();
}//close setOption

public int getOption(){
return option;
}//close getOption

public void selection()
{
if(getOption() == 4){
quit();
}else if (getOption() == 3){
print();
}else if (option == 2){
search();
}else{
getNames();
}//close if
}//close selection

public void setName(String [] names2)
{
names = names2;
}//close setRun

public String [] getNames()
{
String nm;//the user local name
for(int i = count; count < names.length; i++){
System.out.prin t("Enter Your name or enter 'bye' to quit: ");
nm = reader.nextLine ();
if (nm.equalsIgnor eCase("bye")){
break;
}else{
names[count] = nm;
getPass();
}//close if
}//close for
return names;
}//close getRun

public void setPass(int [] pass2)
{
passwords = pass2;
}//close setRun

public int [] getPass()
{
int pass;//the user local password
for(int i = count; count < passwords.lengt h; i++){
while(true){
try{
System.out.prin t("Enter Your password: ");
pass = reader.nextInt( );
passwords[count] = pass;
count++;
reader.nextLine ();
break;
}catch(Exceptio n e){
System.out.prin t("\nEnter a number answer: ");
reader.nextLine ();
}//close exception
}//close while
break;
}//close for
return passwords;
}//close run

public void quit()
{
System.exit(99) ;
}//close quit

public void search()
{
int coresspondingPa ssword;
for(int i = count; count < names.length; i++){
String searchName;
System.out.prin t("Enter Name: " );
searchName = reader.nextLine ();
if(searchName.e quals(names[count])){
coresspondingPa ssword = passwords[count];
System.out.prin t("The password is " + coresspondingPa ssword);
break;
}else{
System.out.prin t(searchName + " not found");
}//close if
count++;
}//close for
}//close search

public void print()
{
for(int i = count; count < names.length; i++){
System.out.prin t(names[i]);
}//close for
}//close getPrint

}//StudentPassword[/CODE]

[Ganon11]

I'm sorry, what was your question?

[sukatoa]

I've run your codes below....

It is recommended to use System.exit(0) than System.exit(99) ....
it is for debugging purposes....

names.length is the length of your array
As you enter name and password, your count increments...
So, your count is the number of elements+1 occupied by the inputs.

about your code below,

if i inputted 5 names and passwords,
and your names.length is set to 20...
your count = 6,

@ search()

for(int i = count; count < names.length; i++)
(this code will start from the count until it reaches the max length...)
How could you access your names and passwords? from 6 to 20?
Yet your names and passwords are stored at reference 0 to 5 in your array....

alternatives:

for(int x=0; x<count; x++){
names[x] and passwords[x].... print them...
}


hope it helps,
sukatoa.... "Shadow Shaman"

[mfshake]

I've run your codes below....

It is recommended to use System.exit(0) than System.exit(99) ....
it is for debugging purposes....

names.length is the length of your array
As you enter name and password, your count increments...
So, your count is the number of elements+1 occupied by the inputs.

about your code below,

if i inputted 5 names and passwords,
and your names.length is set to 20...
your count = 6,

@ search()

for(int i = count; count < names.length; i++)
(this code will start from the count until it reaches the max length...)
How could you access your names and passwords? from 6 to 20?
Yet your names and passwords are stored at reference 0 to 5 in your array....

alternatives:

for(int x=0; x<count; x++){
names[x] and passwords[x].... print them...
}


hope it helps,
sukatoa.... "Shadow Shaman"

So when i put data in my array when i choose option 1, how can i access that data and print it out. I didn't get your explanation.

[mfshake]

So when i put data in my array when i choose option 1, how can i access that data and print it out. I didn't get your explanation.

never mind i figured it out