CE_Sample.java

package ex;

public class CE_Sample {
    public void test() {
        Envy e = new Envy();
        e.a();
        e.b();
        test2();
        e.c();
        e.d();
        e.e();
        e.f();
    }

    public void test2() {

    }
}

class Envy {
    public void a() {
    }

    public void b() {
    }

    public void c() {
    }

    public void d() {
    }

    public void e() {
    }

    public void f() {
    }
}