while?

hvad er der galt i dette script den siger

\"hej.java:4: operator != cannot be applied to int,java.lang.String
        while(tal != \"20\")
                  ^
1 error\"


min kode er denne

class Hej {
    public static void main(String[] args) {
    int tal = 10;
    while(tal != \"20\")
        {
        tal++;
        System.out.println(tal);
        }

    }
}