abstract class A {
    public void f() { }
    abstract public void g();
    // abstract private void h();
    private int iv = 17;
    private final int fiv = 18;
    private static int kv = 19;
    private final static int fkv = 20;
}

interface I1 {
    // public void f() { }
    abstract public void g();
    // abstract private void h();
    int iv = 17;
    final int fiv = 18;
    static int kv = 19;
    final static int fkv = 20;
}

interface I2 {
    void f2();
    void f3();
    int iv = 17;
}

class B extends A {
    public void g() { }
    public void h() { }
}

class J implements I1, I2 {
    public void g() { }
    private void h() { }
    public void f2() { }
    public void f3() { }
}







abstract class AbstraktKlass {
    public void f() { }
    abstract public void g();
}

interface Gränssnitt1 {
    public void g();
}

interface Gränssnitt2 {
    public void i();
}

class Klass1 extends AbstraktKlass {
    public void g() { }
    public void h() { }
}

class Klass2 implements Gränssnitt1 {
    public void g() { }
    public void h() { }
}

class Klass3 implements Gränssnitt2 {
    public void h() { }
    public void i() { }
}

class Klass4 extends AbstraktKlass implements Gränssnitt1, Gränssnitt2 {
    public void h() { }
    public void i() { }
}




class U1c {
    public static void main(String[] arg) {
	AbstraktKlass ak = new Klass1();
	Gränssnitt1 g1 = new Klass2();
	Gränssnitt2 g2 = new Klass3();
	Gränssnitt1 g3 = new Klass4();
	g2 = g3;


	// A a = new A();
	// I i = new I();
	A a2 = new B();
	I1 i1 = new J();
	I2 i2 = new J();
	System.out.println("i1.iv = " + i1.iv);
	System.out.println("i2.iv = " + i2.iv);
	I1 i3 = new J();
	System.out.println("i3.iv = " + i3.iv);
	// i3.iv = 4711;
    } // main
} // class UFOtest