character representation of a blank space

[Vinod Awar]

Hi all,

what is the character representation of a blank space?
Iam trying to remove commas from a String
for ex:
String oldString="2,8764";
I can replace using String.replace(String,String) method.
but our client uses jdk1.3. So i need to use String.replace(char,char) method.

The resulting string should be like this "28764" (note:there should not be any space between).

Thanks,
Vinod

[Balasubramanian Chandrasekaran]

Originally posted by Vinod Awar:
Hi all,

what is the character representation of a blank space?
Iam trying to remove commas from a String
for ex:
String oldString="2,8764";
I can replace using String.replace(String,String) method.
but our client uses jdk1.3. So i need to use String.replace(char,char) method.

The resulting string should be like this "28764" (note:there should not be any space between).

Thanks,
Vinod

This link will answer your question.

[Vinod Awar]

I have read the documentation. There is only one method for replacing.
i.e replace(char,char). How can i get the same result as this:
String oldStr="2,756";
oldStr=oldStr.replaceAll(",","");

using the replace(char,char) method of java 1.3

Thanks,
Vinod

[Petrus Pelser]

Try replace(',', '')

[Vinod Awar]

Try replace(',', '')

gives compilation error: Invalid Character constant

[Balasubramanian Chandrasekaran]

Originally posted by Vinod Awar:


gives compilation error: Invalid Character constant

you have to try

replaceAll(",","\u0020")

Here \u0020 represent space

[Vinod Awar]

replaceAll(",","\u0020")

But it replaces "," with a space.

it is not the same as replaceAll()..

 
String str="#BC 2,84,56";
System.out.println("str:"+str);
System.out.println("str:"+str.replace(',','\u0020'));
System.out.println("str:"+str.replaceAll(",", ""));

output:
str:#BC 2,84,56
str:#BC 2 84 56
str:#BC 28456

See the third line there is no space between numbers.

[Balasubramanian Chandrasekaran]

Hai pal,
Now i got confused with your requirement

Please let me get your requirements correct,you need all "," in the String to be replaced or removed?

My assumption was that

Source String: "2,8456"
Final String: "2 8456" (this is just replacement)

If you want to remove the "," from your string like this following case

Source String: "2,8456"
Final String: "28456" (this is removal)

then your code should be like this

int pos;
String s = "2,3,5,6,,,,65,,5";
while(true)
{
    pos = s.indexOf(",");
       if(pos == -1) //If comma not found
       {
       break;
       }
       s = s.substring(0,pos).concat(s.substring(pos+1,s.length()));
}
s.trim();
System.out.println (s);

[ January 31, 2008: Message edited by: Balasubramanian Chandrasekaran ]

[Vinod Awar]

Thanks Balasubramanian

[Joanne Neal]

Or you could use a StringBuffer - it's charAt() and deleteCharAt() methods could be used in a loop to do what you need. This has the advantage of not creating lots of String objects (each call to substring and concat will create a new String), although for short Strings with few commas, it's probably not that much of a problem.

If you use Balasubramanian's code you will need to change the last but one line to
s = s.trim();