what different between public static and just static in java

Question

public class Contoh {
    public static String publicStatic = "This is static and public";
    static String justStatic = "This is static";

    public static void main(String[] args) {
        System.out.println(publicStatic);
        System.out.println(justStatic);
    }
}

Can anyone explain to me what different between publicStatic and justStatic