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java noob needs help with char variables

Posted on 2003-11-29
4
558 Views
Last Modified: 2012-08-13
right im new to java and was wondering if the following was possible:-

if i declare a variable as char type i can only read in one charactor. is it possible to make it read in 2 charactors?

if thats not possible. can one limit the length of a string to say two?

what im trying to do in my program is that when the user types in 'abcdefg' i just want to take the first two letters an nothing else.

***for the char input***
char res;
            
System.out.println("enter ");
res=KBInput.readChar();
            
System.out.println(res);

Cheers!!

Jack
***method for KBInput***
public final static char readChar()
  {
    char ch = 0;
    BufferedReader inp =
      new BufferedReader(new InputStreamReader(System.in));
    try
    {
      ch = (char)inp.read();
    }
    catch (IOException e)
    {
      System.out.println("Error "+e.toString());
    }
    return ch;
  }

***for string input***
String res;
            
System.out.println("enter ");
res=KBInput.readString();
            
System.out.println(res);
***String method***
public static String readString()
  {
    String inputString;
    try
    {
      BufferedReader inp =
      new BufferedReader(new InputStreamReader(System.in));
      return inp.readLine();
    }
    catch (IOException e)
    {
      System.out.println("Error "+e.toString());
      return " ";
    }
  }

Cheers!!

Jack
0
Comment
Question by:skinnyl
  • 3
4 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 125 total points
ID: 9842283
All you need to do is read a String and then cut it:

String s = readString();
if (s.length() > 2) {
      s = s.substring(0, 3);
}
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 9842289
Then, if you want to access the chars individually:

char[] chars = s.toCharArray();
char c1 = char[0];
char c2 = char[1];
0
 

Author Comment

by:skinnyl
ID: 9842354
wonderful mate!!

thanks

Jack
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 9842356
8-)
0

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