class A{ B b=new B(); public void pint(){ System.out.println("This is A fun"); b.print(); }
} class B{
public void print(){ System.out.println("This is B fun"); } } public class Test { public static void main(String[] args) { A a=new A(); a.pint(); }}或者用工厂模式
B b=new B();
public void pint(){
System.out.println("This is A fun");
b.print();
}
}
class B{
public void print(){
System.out.println("This is B fun");
}
}
public class Test { public static void main(String[] args) {
A a=new A();
a.pint();
}}或者用工厂模式