[Tutorial] Arrays

[cool dude]

this is a sample program i made to show you how. i might be mistaken because i just started java but this is using my knowledge from other languages

code:

import java.io.*; public class arrays {     public static void main (String[]args){         int[] numbers = new int[5];         String number;         try{             BufferedReader in = new BufferedReader(new InputStreamReader(System.in));             for(int i = 0; i<5; i++){             System.out.println("enter 5 numbers");             number = in.readLine();             numbers[i] = Integer.parseInt(number);                }             for(int j = 0; j<5; j++){                 System.out.println("The numbers you entered are " + numbers[j]);             }         }catch(IOException nfe){         }     } }

[Krabjuice]

Well, if you already know how large the array is, a simple for loop is all you need.

Make sure you start your loop at 0, as the index for an array begins at 0--not 1. Thus start=0, end=(size-1)

For instance:

code:

import java.util.Scanner; public class ArrayInput {      public static void main (String[] args)      {           Scanner input = new Scanner(System.in);           int[] get = new int[10];           for (int i=0;i<=9;i++)           {                get[i]=input.nextInt();           }      } }

[cool dude]

Krabjuice wrote:

Well, if you already know how large the array is, a simple for loop is all you need.

Make sure you start your loop at 0, as the index for an array begins at 0--not 1. Thus start=0, end=(size-1)

For instance:

code:

import java.util.Scanner; public class ArrayInput {      public static void main (String[] args)      {           Scanner input = new Scanner(System.in);           int[] get = new int[10];           for (int i=0;i<=9;i++)           {                get[i]=input.nextInt();           }      } }

dude thats pretty much the same thing i wrote! except your using scanner to get input and i'm using bufferedreader.

[Krabjuice]

True. However, not everyone uses the classic buffered reader method. Pick and choose, it would seem the situation is.

[cool dude]

Krabjuice wrote:

True. However, not everyone uses the classic buffered reader method. Pick and choose, it would seem the situation is.

actually i would have chosen the scanner method but unfortunately it seems not to work, even though i downloaded the latest version of java from the javasun website.

[Krabjuice]

Well, now we have two excellent examples of input and array manipulation.

[JMG]

what are the limit to arrays in java? good tut btw XD