interface method declarations

package interfaces;
interface Imethods
{
    int m1();    // By default public abstract int m1()
    abstract void m2();
    // private void m3();   error
    // public static void m4();  error
    // public static synchronized m4() error

    
}
public class Interfacemethods implements Imethods {
    public int m1()   // with out public we will get error
    {
        System.out.println("implementation m1");
        return 10;
    }
    public void m2() // with out public we will get error
    {
        System.out.println("implementation m2");
    }
}