Hello guys ,i want anyone to help me with the clue to this java problem.
i want to print five digit input from a user to diplay as "1 2 3 4 5" meaning three spaces between the digits.and also alert if the input is less or more than 5 digits.
Thank

okay, let me try:

class Datamanuplate{ // the class to execute your task

public static void printspace(int number) // method to print empty space
{
for(int i=0;i<number;i++)
{
System.out.print(" ";
}
}

public static void main(String args[]) // main method
{
if(args.length!=5)
{
System.out.println("The input data must be 5"; //if the user entered less than 5 inputs, prompt him to enter 5 inputs
}
else
{
System.out.print("'"; // execute the task
for(int i=0;i<args.length;i++)
{
System.out.print(args[i]);
printspace(3);
}
System.out.print("'";
}
}
}

import java.util.Scanner;
public class Lolade123{
public static void main(String []args){
Scanner s = new Scanner(System.in);
System.out.println("i want to print five digit input from a user to diplay meaning three spaces between the digits.and also alert if the input is less or more than 5 digits";
System.out.println("Chikenna : Oya, Enter am !";
try{
int digits = s.nextInt();
String val = String.valueOf(digits);
if(val.length() > 5 || val.length() < 5){
System.out.println("Digit of numbers u provided not valid ooo !";
}
else{
System.out.printf("%s %s %s %s %s", val.charAt(0), val.charAt(1), val.charAt(2), val.charAt(3), val.charAt(4));
}
}
catch(Exception e){
System.err.println("Exception in imput happen ooo ! Cause ? : " + e.getMessage());
}
}
}


sorry say i no put comment, want to test if u go understand am without comment !
Note: there are 1 thousand and 1 ways of writing a program to solve a problem , my code isnt the solution coz u can write a beta one!

segsalerty:

import java.util.Scanner;
public class Lolade123{
public static void main(String []args){
Scanner s = new Scanner(System.in);
System.out.println("i want to print five digit input from a user to diplay meaning three spaces between the digits.and also alert if the input is less or more than 5 digits";
System.out.println("Chikenna : Oya, Enter am !";
try{
int digits = s.nextInt();
String val = String.valueOf(digits);
if(val.length() > 5 || val.length() < 5){
System.out.println("Digit of numbers u provided not valid ooo !";
}
else{
System.out.printf("%s %s %s %s %s", val.charAt(0), val.charAt(1), val.charAt(2), val.charAt(3), val.charAt(4));
}
}
catch(Exception e){
System.err.println("Exception in imput happen ooo ! Cause ? : " + e.getMessage());
}
}
}


sorry say i no put comment, want to test if u go understand am without comment !
Note: there are 1 thousand and 1 ways of writing a program to solve a problem , my code isnt the solution coz u can write a beta one!

When I saw your code I checked the program requirement again, I actually got it run as I provided solution for five input data ie five numbers and print them out by spacing them into 3 equal space. Your solution is right, welldone and keep it up.

Oh, Okay, thanks. I appreciate! Hope the poster finds it useful.

I swear by God Almighty,i love this site,i appreciate every contributions,it really helpful,i tried the google and alot of java docs but nairaland helped me .I love you guys so much.Sincerely have improved in my class cos am on top presently,i was d guy who had probs on javascript but now am cool with it.
I just hope my classmate dont get to know Nairaland ,we are the best
Thanks Seun and all others .

I just hope my classmate dont get to know Nairaland

I will recommend that you tell all your classmates about Nairaland, the more people are knowledgeable the better it will be for our society.

csharpjava:

I will recommend that you tell all your classmates about Nairaland, the more people are knowledgeable the better it will be for our society.

true Talk !

Seg you're pretty good with Java, maybe you and I could work together on this program I'm thinking of. . .not now though, watch this space.

Dolemite:

Seg you're pretty good with Java, maybe you and I could work together on this program I'm thinking of. . .not now though, watch this space.

Ha, am just a baby newbie, u re making my head swell already! anywayz, anytime !

Hi segsalerty , please i have a question for you. Do you know how to package an application developed in java that has Mysql as backend database so that it can be easily distributable? Thank you in anticipation of your response.

Yah Yah Yah !
Read about "MySQL-MXJ" --- with this library by MySQL, u can package ur java application and at launch u can tell ur app to create a MySQL database 'PROCESS' and u can create new database, config / create and access tables data and so on both on LOCALHOST and REMOTELY
The remote accessibility of this library implementation makes java db programming so freeking sweet

Another one is "MySQL-je" --- is an open source library that a programmer developed with the dynamic library ".dll" of MySQL engine to embed MySQL db with ur app and then do same as real "MySQL" but it currently doesnt allow REMOTE ACCESS

if u cant use any of these two, Better u use java db that is default db library that comes with ur jdk

Hope u find what u need?

segsalerty:

Yah Yah Yah !
Read about "MySQL-MXJ" --- with this library by MySQL, u can package your java application and at launch u can tell your app to create a MySQL database 'PROCESS' and u can create new database, config / create and access tables data and so on both on LOCALHOST and REMOTELY
The remote accessibility of this library implementation makes java db programming so freeking sweet

Another one is "MySQL-je" --- is an open source library that a programmer developed with the dynamic library ".dll" of MySQL engine to embed MySQL db with your app and then do same as real "MySQL" but it currently doesnt allow REMOTE ACCESS

if u cant use any of these two, Better u use java db that is default db library that comes with your jdk

Hope u find what u need?

Thanks ,but it was not helpful enough. The stage I am with what I want to achieve is that I tried creating a jar file of the application I developed with Mysql as the database by copying both the table and mysql-connector-java-5.1.12-bin.jar into library according what I read on line on how to go about it. After creating the jar file of the entire application, I found out that it was not connecting to the table of database when the application is run;that is the challenge I am facing currently.Based on the info I have provided now, could you advise me on how to go about it to get it working.Thank you for your response.

what i explainded earlier answered ur question.
In summary , the best solution for this ur problem is using Microsoft-Access DB or JavaDB or probably make use of a text file !
Here are my reasons ****************
MySQL is a program, it needs to be launched/executed before u can access its Resources/Tables by providing its "Host Address"
there is no how u can extract tables from this MYSQL without SQL query

Abi, how was ur URL string that u specified in ur java code when u were using ur MySQL driver? what was ur host name ?

my previous post are the only 2 ways of using MySQL database packed with ur application setup, else, the person will install MySQL separateley.

best bet for u now is using Microsoft Access or JavaDB

hope this helps

segsalerty thank you.

u are so much welcome ,
Hope problem solved? 

If u want to see how an Embedded MySQL works, u can download this 93MB file
Its a E-Super Market Generic Solutions that i developed implementing the MySQL-mxj Library.
see how it works and how its driven, if u have any question, free to ask

download link is :

http://www.sendspace.com/file/qppvdi

Hi Segsalerty,I have downloaded the software but could not run it because of the admin password. How does it work and what is the default password? I must commend you for your good works. Keep it up.

Sorry,, I forgot to drop the default password.

admin

its case sensitive,
U see how the software created and configured MySql when u launched it? Eachtime the program is running. The app MySql is turned on and when the app exit, The MySql is killed !

Login, register the software, setup ur supermaket to ur taste, add items enough items and add remote users. And wait till tonight when am gonna send the link to the client UI

can somebody help me to fine tone this code, i set it as string but i want to cast string to double, when storing those string:

String txt = null; String line = null;
ApplicationData app = new ApplicationData();
String[] splits = txt.split("\t";
String amt = "0";
if (length > 3 && !splits[3].equals("") {
amt = splits[3].trim();
amt = splits[3].replace('-',',').replace('"',',').replace('(',',').replace(')',',');
String actSplit[] = amt.split(",";
for(int z = 0; z < actSplit.length; z++){
      amount += actSplit[z];
    }
}
app.setAmount(amount);


my main concern is that, I want the values which i uploaded to return back in double. I think i can cast using Double.valueOf(amt); but is not working.
Kindly help pls

codejava:

can somebody help me to fine tone this code, i set it as string but i want to cast string to double, when storing those string:


my main concern is that, I want the values which i uploaded to return back in double. I think i can cast using Double.valueOf(amt); but is not working.
Kindly help pls

You can use the method: Double.parseDouble(amt) to convert the string to double.

codejava:

can somebody help me to fine tone this code, i set it as string but i want to cast string to double, when storing those string:

String txt = null; String line = null;
ApplicationData app = new ApplicationData();
String[] splits = txt.split("\t";
String amt = "0";
if (length > 3 && !splits[3].equals("") {
amt = splits[3].trim();
amt = splits[3].replace('-',',').replace('"',',').replace('(',',').replace(')',',');
String actSplit[] = amt.split(",";
for(int z = 0; z < actSplit.length; z++){
      amount += actSplit[z];
    }
}
app.setAmount(amount);


my main concern is that, I want the values which i uploaded to return back in double. I think i can cast using Double.valueOf(amt); but is not working.
Kindly help pls

Sorry bro, ur code is so much freaking difficult for me to understand , but, i guess u are trying to convert a Text(String) to an amount value rep as double val (i.e 300.00 and 450.89) right ? if thats it, this is something i cooked up sometimes ago i needed smth like this solution, i just modified it for ur own case , hope it will help u by modify what i did then to what u want to do

///////////////////////code starts here, just copy past the class and compile and run like this "java Test 780" or whatever value u put as first arg
import java.text.DecimalFormat;

public class Test{

public static void main(String []args){
System.out.println("This is the Decimal Value of the input String (GOOD AS IT RETURNS STRING COZ double rounds any .0) is : " + formatValueTo_twoDecimalPlaceString(args[0]));
System.out.println("This is kinda useless but for u to see why the method up is preferred : " + formatValueTo_twoDecimalPlaceDouble(args[0]));
}

public static String formatValueTo_twoDecimalPlaceString(String s){
String val = "";
DecimalFormat df = new DecimalFormat("##############0.00";
try{
val = df.format(Double.valueOf(s));
return val;
}
catch(Exception Ne){
return "";
}
}

public static Double formatValueTo_twoDecimalPlaceDouble(String s){
double result = 0.0;
DecimalFormat df = new DecimalFormat("##############0.00";
try{
result = Double.valueOf(df.format(Double.valueOf(s)));
return result;
}
catch(Exception Ne){
return 0.0;
}
}
}
///////////////////////////////////////
sorry that i dont like putting comments inside small java code
i believe u will grab the concept and helps u solve ur problem
Wish u Happy Coding !

Thanks segsalerty, I looked at your code is ok but i still have a challenge, 'am populating MySql db from text file. I quite can upload the data using buffer, but I made the amount column to be string, so i just want the module of the amount to be converted back to double rather than doing it manually b4 uploading. I still find it difficult to modified or apply your code.

I have a simple problem, I have a code that requires the user to input Y/N at regular intervals

public static void main(String[] args){
. , , . . . . . . . . . . .
System.out.println("continue? Y/N";
response=input.next().charAt(0);
//does a calc
System.out.println("continue? Y/N";
response=input.next().charAt(0);
//does a calc
}
For now the response is useless because even if the user enters n it doesn't quit, its currently in a do while loop. . .

sorry guyz, let me sharply post the link to the Client UI for Otuabaroku

http://www.sendspace.com/file/uk4bs0

Pls, download the client of the Suermarket server from here , Launch the one that has suffic '_localhost' if ur computer isnt connected to the LAN, else , Launch '_LAN' if ur sys is connected to a WLAN or LAN ,
Launch Server before the client , Create remote server before launching Client
Send Critics to my email segsalerty@yahoo.com, it will be highly appreciated

I just woke up, got Class by 10am , i wan sharply go do some necessary stuffs and come and attend to the questions on wall.
Please hold

@CodeJava
This function :
public static String formatValueTo_twoDecimalPlaceString(String s){
String val = "";
DecimalFormat df = new DecimalFormat("##############0.00";
try{
val = df.format(Double.valueOf(s));
return val;
}
catch(Exception Ne){
return "";
}
}

just add it to ur class and use it wherever, the above code isnt add to implement and its okay to put String rep of a double value into ur Ammount Colum(VARCHAR datatype)
and if u want to turn it back to double for arithmetic calculations ,
just say double.parseDouble(****data from database ***);
hope this helps

What about my code baby?

@dolemite
I will like to see ur code , but, anyways, i can guess what the problem might be,
*******
after assigning 'response' variable from user , just try tune this into ur code

do{
///ur do

response = input.next().charAt(0);
//say
if(response == $$$your NO value$$$){
break;
}
}//end of do
while(blah blah blah);

hope this works
your break can exit from the loop as soon as respose = n

Hello guys,am so happy am advancing in Java with help from everyone,but am having probs with this simple one.
am writing a program to input five digits from user,diplays the number of negative,positive and zero interger values.Thanks men

u should have tried putting sample inputs and sample outsputs coz my ENGLISH is bad
That grammer is tough for me,
u mean input like
3. -4. 0. 5, 0
output should then be
1 negative value
2 positive value
2 zero value

abi ?

or output be :
Negative Values : -4
Positive Values : 3, 5
Zero Value : 0, 0

abi ?

segsalerty:

u should have tried putting sample inputs and sample outsputs coz my ENGLISH is bad
That grammer is tough for me,
u mean input like
3. -4. 0. 5, 0
output should then be
1 negative value
2 positive value
2 zero value

abi ?

or output be :
Negative Values : -4
Positive Values : 3, 5
Zero Value : 0, 0

abi ?

yeah the second one is prefered and it should count the numbers like 2 +numbers,3 -numbers and 1zero,thanks man.

lolade123:

Hello guys,am so happy am advancing in Java with help from everyone

are u sure about that ?
here is ur solution

****************************************
import java.util.List;
import java.util.ArrayList;
import java.util.Scanner;

public class Test{
private List<Integer> listOfNumbers;
private Scanner scan;
private int negativeCount = 0;
private int positiveCount = 0;
private int zeroCount = 0;

private String negativeString = "Negative Numbers are : ";
private String positiveString = "Positive Numbers are : ";
private String zeroString = "Zero Numbers are : ";

public Test(){
listOfNumbers = new ArrayList<Integer>();
scan = new Scanner(System.in);
collectTheInputs();
process_printOutPut();
}

private void collectTheInputs(){
System.out.println("Enter each Digits u want to key in and press Enter after each : \t GoodLuck lolade123 !";
for(int i = 0; i < 5; i++){
try{
listOfNumbers.add(scan.nextInt());
}
catch(Exception e){
listOfNumbers.add(0); //since the value entered cannot be classified as an integer, so, make it 0 as default
}
}
}

private void process_printOutPut(){
for(int x : listOfNumbers){
if(x > 0){
positiveString += String.valueOf(x) + ", ";
positiveCount++;
}
else if(x < 0){
negativeString += String.valueOf(x) + ", ";
negativeCount++;
}
else{
zeroString += String.valueOf(x) + ", ";
zeroCount++;
}
}
//after the loop
System.out.println(positiveString + "\t and COUNTS to : " + positiveCount);
System.out.println(negativeString + "\t and COUNTS to : " + negativeCount);
System.out.println(zeroString + "\t and COUNTS to : " + zeroCount);
}

public static void main(String []args){
new Test();
}

}
**************
hope it solves ur problem

lolade123:

yeah the second one is prefered and it should count the numbers like 2 +numbers,3 -numbers and 1zero,thanks man.

You know you're not really advancing if he keeps spoon feeding you code like this. . .