Passing a value from main() to map()

[王瑞军]

hello everyone:
        i have a problem.we knew map() has it's own parameter such
as map(Object key, Text value, Context context).
the following is my structure.

public class aaa{
     public static class bbb {
               public void map() {
                         i want use the variable number here;
                         for example;
                         if(number==0) {print xxxxxx}
                    }
            }
    public static void main() {
          we receive a number from the keyboard,for example;
          Scanner input = new Scanner(System.in);
              number = input.nextInt();
    }
}

so how can i do?grateful!