Using a variable to set an object array in java

Question

When I set an object array such as:

Player[] player = new Player[amountOfPlayers];

I use:

amountOfPlayers = br.read();

To get the variable amountOfPlayers. Whenever I run my program I would type in 3 when asked to set the amountOfPlayers but my output says there are 51 players.

Though when I set the new Player array to: new Player[3]; it works.

Anyone know why this would be?

Can you post the actual full code, as it is hard to guess what is going on here? — bjedrzejewski
– bjedrzejewski, Commented Aug 7, 2013 at 10:11

Community · Accepted Answer · 2017-05-23 12:13:46Z

8

The problem is that you read a char and interpret it as an integer. The character 3 has ASCII code 51.

It is probably easier to use a Scanner than a BufferedReader to read the input, as suggested by Prasad.

edited May 23, 2017 at 12:13

CommunityBot

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answered Aug 7, 2013 at 10:14

Vincent van der Weele

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1 Comment

Prasad Kharkar Over a year ago

thanks for mentioning :) upvote for the word ASCII which I forgot to mention.

Prasad Kharkar · Accepted Answer · 2013-08-07 10:20:00Z

3

Use this to read input instead of BufferedReader Scanner in = new Scanner(System.in); amountOfPlayers = in.nextInt();

This could be because br.read() reads the character value whichis 51 for 3.

using in.nextInt() will ensure it is converted into int.

edited Aug 7, 2013 at 10:20

answered Aug 7, 2013 at 10:13

Prasad Kharkar

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Comments

newuser · Accepted Answer · 2013-08-07 10:17:48Z

1

Try this,

Integer.parseInt(bufferedReader.readLine());

answered Aug 7, 2013 at 10:17

newuser

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