Charles Bell
Posts: 519
Nickname: charles
Registered: Feb, 2002
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Re: String to Ascii code
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Posted: Feb 3, 2003 3:04 PM
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Check out the following link concerning unicode and ascii:
http://java.sun.com/docs/books/jls/first_edition/html/3.doc.html#95413
The first 128 characters of the Unicode character encoding are the ASCII characters.
char is a primitve type of data, from '\u0000' to '\uffff' inclusive, that is, from 0 to 65535
Ascii is just a subset of unicode.
Read all about unicode at:
http://www.unicode.org/
I think you are just looking for the numeric value of each character in a string.
Use the Character class static method to do this:
public static int getNumericValue(char ch)
Use the charAt(int index) method of the String class to iterate through each character in the string.
Check this out:
public class Test{
public Test(){
}
public static void main (String[] args){
Test test = new Test();
test.convert("This is a test.");
}
public void convert(String s){
for (int i = 0; i < s.length(); i++){
char nextCharacter = s.charAt(i);
int value = Character.getNumericValue(nextCharacter);
System.out.println("Character: " + String.valueOf(nextCharacter) + " Value: " + String.valueOf(value));
}
}
}
This gives the following output:
Character: T Value: 29
Character: h Value: 17
Character: i Value: 18
Character: s Value: 28
Character: Value: -1
Character: i Value: 18
Character: s Value: 28
Character: Value: -1
Character: a Value: 10
Character: Value: -1
Character: t Value: 29
Character: e Value: 14
Character: s Value: 28
Character: t Value: 29
Character: . Value: -1
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