[RESOLVED] String Replace...

can somebody tell me what the error in this code is please?

Code:

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// NOTE:
// client.sSpaceRep = "%20";

        public String EncodeChatMsg(String ChatMsgIn){
                String sReplace;
                // Start the process of editing the message
                sReplace = ChatMsgIn;
                // Find any double spaces
                while(sReplace.indexOf("  ") != -1){
                        // change the double to single space
                        sReplace.Replace("  "," ");
                }
                // replace single spaces with %20
                sReplace.Replace(" ",client.sSpaceRep);
                // Return the edited msg
                return sReplace;               
        }

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Code:

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C:\Programming\TheWalks\TheWalksChat\JavaChat\chatclient\ClientInterface.java:253: cannot resolve symbol
symbol  : method Replace (java.lang.String,java.lang.String)
location: class java.lang.String
                        sReplace.Replace("  "," ");
                                ^
C:\Programming\TheWalks\TheWalksChat\JavaChat\chatclient\ClientInterface.java:255: cannot resolve symbol
symbol  : method Replace (java.lang.String,java.lang.String)
location: class java.lang.String
                sReplace.Replace(" ",client.sSpaceRep);
                        ^

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Taking a quick look at your code you should use replace() not Replace();