Split Digits into an array

Question

I am doing this in Java

I want to split digits of an Integer,

int Pin=125;

To an array,

int Pin_Extracted={Pin[0], Pin[1], Pin[2]};

Code:

import java.io.*;
class name {
    public static void main(String args[])throws IOException {
        InputStreamReader ir = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(ir);
        int Pin;
        String Names[][] ={ {"Mr.","Mrs.","Miss.","Dr.","Sir","Late","Professor","Gadha","Master","Teacher"},{"Abhigyan","Akashdeep","Anish","Adarsh","Ashutosh","","Anik","Shivam","",""},{"Saha","Mukkherjee","Pandey","Shaw","Bannerjee","Dey","Gupta","Singh","",""} };        
        System.out.println("Enter your 3 digit code name :");
        Pin=Integer.parseInt(br.readLine());
        char cn[]=Pin.toCharArray();
        int cn1=cn[0], cn2= cn[1], cn3= cn[2];
        String Name1=Names[0][cn1], Name2=Names[1][cn2], Name3=Names[2][cn3];
        System.out.println(Name1+" "+Name2+" "+Name3);
    }
}

Thanks for letting us know you're doing that in Java. But try asking a question and providing some code ;) — Mark, Mar 17 '16 at 13:24
https://www.dropbox.com/s/szaoqoe1yif5i0i/drop.txt?dl=0 This is my program, Iwant to have code name for every single name but it says java ArrayIndexOutOfBoundsException : 48 — Abhigyan Singh, Mar 17 '16 at 13:41
@AbhigyanSingh Editing the post instead of adding a dropbox link would be amazing :) — Debosmit Ray, Mar 17 '16 at 13:43

score 1 · Answer 1 · answered Mar 17 '16 at 13:34

1

Try this:

public void int [] convertToArray(int pin){
     StringBuilder sB = new StringBuilder();
     sB.append(pin);
     String toConvert = sB.toString();
     int [] splittedValue = new int [toConvert.length];
     for(int i = 0; i < toConvert.length; i++){
        splittedValues[i] = Integer.parseInt(toConver.charAt(i));
    }
 return splittedValues; 
 }

I think this works...regards

answered Mar 17 '16 at 13:34

1

There is no good reason to use a `StringBuilder` here. Just saying. – Debosmit Ray Mar 17 '16 at 13:46
Nor is there a good reason to use `Integer.parseInt` - `Character.getNumericValue` is easier. – Andy Turner Mar 17 '16 at 13:49

Syeknom · Accepted Answer · 2016-03-17T13:54:04.653

0

You'll need to convert the integer to a string first.

String pinStr = Integer.toString(Pin);

Then iterate over the new String as an array of characters, assigning them to a new array of ints as you go.

int [] pinExtracted = new int[pinStr.length()];

for (int i = 0; i < pinStr.length(); i++){
    pinExtracted[i] = Integer.parseInt(pinStr.charAt(i));
}

edited Mar 17 '16 at 13:54

answered Mar 17 '16 at 13:38

Syeknom

86
4

Please refrain from adding similar solutions to ones already available to not promote duplication [[reference](http://stackoverflow.com/questions/8033550/convert-integer-to-array-of-digits)] – Debosmit Ray Mar 17 '16 at 13:40
I used it but it said " some messages have been simplified,recompile with- Xdiags:verbose to get full output ". – Abhigyan Singh Mar 17 '16 at 13:51
Normally there should be a more useful error message along with that. Please check for another error message and double check the code (e.g. .length() instead of .length). – Syeknom Mar 17 '16 at 13:58
Now it says : char cannot be converted into java.lang.string – Abhigyan Singh Mar 17 '16 at 14:03
Sorry, use Character.getNumericValue(pinStr.charAt(i)) instead of Integer.parseInt(). – Syeknom Mar 17 '16 at 14:56

Split Digits into an array

2 Answers2