Is this error about not finding a variable a scope problem?

I am doing a parse program.this is my main file. I create an instance class of indentifier in the main file but it cant compile. error showing that inside the if statement dataArrary.lineStart(limiterNum,lineNum); cannot find dataArray symbol.So i did miss something ? is that a scope problem?

public static void main(String[] args){     
    BufferedReader reader = null;
    String line = "a";  
    try{
        indentifier dataArray = new indentifier();
        reader = new BufferedReader(new FileReader("Discount.开发者_如何学Cjava"));
        Pattern a = Pattern.compile(".*for(.*)[{]");
        Pattern b = Pattern.compile(".*while(.*).*[{]");
        Pattern c = Pattern.compile(".*if(.*)[{]");
        Pattern d = Pattern.compile(".*[}]");
        Pattern e = Pattern.compile(".*class.*[{]");
        Pattern f = Pattern.compile("(.*)[{]");

        while(line != null){
            line = reader.readLine();
            Matcher mfor = a.matcher(line);
            Matcher mwhile = b.matcher(line);
            Matcher mif = c.matcher(line);
            Matcher mend = d.matcher(line);
            Matcher mclass = e.matcher(line);
            Matcher mfunc = f.matcher(line);



            if (mclass.matches() == true){
                dataArrary.lineStart(limiterNum,lineNum);
                limiteradd(0);
                continue;
            }

again,if i miss something on the internet. Please show me anykey word or links to point me out.thank you very much

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That's a typo. You declare dataArray, but use dataArrary.

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You wrote dataArrary instead of dataArray. Misspell.

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I can't find dataArrary either, perhaps you meant dataArray which to declared earlier.

I tend to use my IDE's code completion to avoid such issues (and save typing) In my IDE can can write da and <ctrl>+<space> and it gives me a list of possible symbols I can use. That way I save a few key presses and its usually right.