Handling ASCII character set in Java (II)

Handling ASCII character set in Java (II)

7 February 2008

This post is in continuation of “Handling ASCII character set in Java (I)”. In this post, I will talk about how to validate input according to ASCII character set.

As I have already written, ASCII has only 93 printable characters with ASCII codes from 33 till 126 (inclusive). Lets see how to validate input according to ASCII printable characters.

I have written a method that can be used for validation:

public static ArrayList<String> valiateCharacterSetAscii(ArrayList<String>fileContents){
 
 
ArrayList <String>tmpList = new ArrayList<String>();
String str = "";
 
for(int j=0; j < fileContents.size();j++)
{
str = fileContents.get(j);
String resultantString = "";
for(int i=0;i<str.length();i++){
int charCode = (int)str.charAt(i);
if( ((charCode>=33 && charCode <=126)))
resultantString += str.charAt(i);
else
resultantString += null;
}
tmpList.add(resultantString);
}
return tmpList;
}